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61725604127465 = 5431372095590023
BaseRepresentation
bin11100000100011100111001…
…01101010010001011101001
322002112220120110222210002102
432002032130231102023221
531042303014124034330
6335140203455343145
716000346004132065
oct1602163455221351
9262486513883072
1061725604127465
111873875538a613
126b0aa03b21ab5
132859912a2c935
14113576c76aaa5
15720958129945
hex38239cb522e9

61725604127465 has 16 divisors (see below), whose sum is σ = 76346535754368. Its totient is φ = 47880040822656.

The previous prime is 61725604127459. The next prime is 61725604127489. The reversal of 61725604127465 is 56472140652716.

It is a cyclic number.

It is not a de Polignac number, because 61725604127465 - 214 = 61725604111081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61725604127465.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047765557 + ... + 1047824466.

It is an arithmetic number, because the mean of its divisors is an integer number (4771658484648).

Almost surely, 261725604127465 is an apocalyptic number.

It is an amenable number.

61725604127465 is a deficient number, since it is larger than the sum of its proper divisors (14620931626903).

61725604127465 is a wasteful number, since it uses less digits than its factorization.

61725604127465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095590208.

The product of its (nonzero) digits is 16934400, while the sum is 56.

The spelling of 61725604127465 in words is "sixty-one trillion, seven hundred twenty-five billion, six hundred four million, one hundred twenty-seven thousand, four hundred sixty-five".

Divisors: 1 5 43 137 215 685 5891 29455 2095590023 10477950115 90110370989 287095833151 450551854945 1435479165755 12345120825493 61725604127465