123568490936 has 32 divisors (see below), whose sum is σ = 252767228400. Its totient is φ = 56164496640.

The previous prime is 123568490887. The next prime is 123568490939. The reversal of 123568490936 is 639094865321.

It is a happy number.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123568490939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3176210 + ... + 3214878.

Almost surely, 2^123568490936 is an apocalyptic number.

It is an amenable number.

123568490936 is an abundant number, since it is smaller than the sum of its proper divisors (129198737464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123568490936 is a wasteful number, since it uses less digits than its factorization.

123568490936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74999 (or 74995 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 123568490936 in words is "one hundred twenty-three billion, five hundred sixty-eight million, four hundred ninety thousand, nine hundred thirty-six".