102657090769 has 4 divisors (see below), whose sum is σ = 104397041520. Its totient is φ = 100917140020.

The previous prime is 102657090743. The next prime is 102657090791. The reversal of 102657090769 is 967090756201.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 967090756201 = 197 ⋅4909090133.

It is a cyclic number.

It is not a de Polignac number, because 102657090769 - 2⁵ = 102657090737 is a prime.

It is a super-2 number, since 2×102657090769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102657090709) 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, 869975287 + ... + 869975404.

It is an arithmetic number, because the mean of its divisors is an integer number (26099260380).

Almost surely, 2^102657090769 is an apocalyptic number.

It is an amenable number.

102657090769 is a deficient number, since it is larger than the sum of its proper divisors (1739950751).

102657090769 is an equidigital number, since it uses as much as digits as its factorization.

102657090769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739950750.

The product of its (nonzero) digits is 1428840, while the sum is 52.

The spelling of 102657090769 in words is "one hundred two billion, six hundred fifty-seven million, ninety thousand, seven hundred sixty-nine".