102766034621 has 4 divisors (see below), whose sum is σ = 102823672992. Its totient is φ = 102708396252.

The previous prime is 102766034611. The next prime is 102766034629. The reversal of 102766034621 is 126430667201.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102766034621 is a prime.

It is a super-2 number, since 2×102766034621² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102766034629) 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, 28816511 + ... + 28820076.

It is an arithmetic number, because the mean of its divisors is an integer number (25705918248).

Almost surely, 2^102766034621 is an apocalyptic number.

It is an amenable number.

102766034621 is a deficient number, since it is larger than the sum of its proper divisors (57638371).

102766034621 is an equidigital number, since it uses as much as digits as its factorization.

102766034621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57638370.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 102766034621 in words is "one hundred two billion, seven hundred sixty-six million, thirty-four thousand, six hundred twenty-one".