73555672057 has 16 divisors (see below), whose sum is σ = 85670058240. Its totient is φ = 61843459392.

The previous prime is 73555672039. The next prime is 73555672109. The reversal of 73555672057 is 75027655537.

It is a cyclic number.

It is not a de Polignac number, because 73555672057 - 2⁷ = 73555671929 is a prime.

It is a super-2 number, since 2×73555672057² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73555671995 and 73555672013.

It is not an unprimeable number, because it can be changed into a prime (73555652057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1714723 + ... + 1757095.

It is an arithmetic number, because the mean of its divisors is an integer number (5354378640).

Almost surely, 2^73555672057 is an apocalyptic number.

It is an amenable number.

73555672057 is a deficient number, since it is larger than the sum of its proper divisors (12114386183).

73555672057 is a wasteful number, since it uses less digits than its factorization.

73555672057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47112.

The product of its (nonzero) digits is 7717500, while the sum is 52.

The spelling of 73555672057 in words is "seventy-three billion, five hundred fifty-five million, six hundred seventy-two thousand, fifty-seven".