102942579757 has 4 divisors (see below), whose sum is σ = 103062420640. Its totient is φ = 102822738876.

The previous prime is 102942579743. The next prime is 102942579877. The reversal of 102942579757 is 757975249201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102942579757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102942579737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59919153 + ... + 59920870.

It is an arithmetic number, because the mean of its divisors is an integer number (25765605160).

Almost surely, 2^102942579757 is an apocalyptic number.

It is an amenable number.

102942579757 is a deficient number, since it is larger than the sum of its proper divisors (119840883).

102942579757 is an equidigital number, since it uses as much as digits as its factorization.

102942579757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119840882.

The product of its (nonzero) digits is 11113200, while the sum is 58.

The spelling of 102942579757 in words is "one hundred two billion, nine hundred forty-two million, five hundred seventy-nine thousand, seven hundred fifty-seven".