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61750877423 is a prime number
BaseRepresentation
bin111001100000101000…
…111001110011101111
312220101112011121001012
4321200220321303233
52002431211034143
644211251335435
74314146540414
oct714050716357
9186345147035
1061750877423
11242088401a4
12bb742b157b
135a9140b331
142dbb22010b
151916306418
hexe60a39cef

61750877423 has 2 divisors, whose sum is σ = 61750877424. Its totient is φ = 61750877422.

The previous prime is 61750877417. The next prime is 61750877473. The reversal of 61750877423 is 32477805716.

It is a happy number.

It is an a-pointer prime, because the next prime (61750877473) can be obtained adding 61750877423 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61750877423 - 24 = 61750877407 is a prime.

It is a super-2 number, since 2×617508774232 (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61750877473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30875438711 + 30875438712.

It is an arithmetic number, because the mean of its divisors is an integer number (30875438712).

Almost surely, 261750877423 is an apocalyptic number.

61750877423 is a deficient number, since it is larger than the sum of its proper divisors (1).

61750877423 is an equidigital number, since it uses as much as digits as its factorization.

61750877423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 61750877423 in words is "sixty-one billion, seven hundred fifty million, eight hundred seventy-seven thousand, four hundred twenty-three".