609397639700 has 36 divisors (see below), whose sum is σ = 1328218446912. Its totient is φ = 242685218400.

The previous prime is 609397639661. The next prime is 609397639727. The reversal of 609397639700 is 7936793906.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 609397639700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13400156 + ... + 13445555.

Almost surely, 2^609397639700 is an apocalyptic number.

It is an amenable number.

609397639700 is an abundant number, since it is smaller than the sum of its proper divisors (718820807212).

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

609397639700 is a wasteful number, since it uses less digits than its factorization.

609397639700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26845952 (or 26845945 counting only the distinct ones).

The product of its (nonzero) digits is 11573604, while the sum is 59.

The spelling of 609397639700 in words is "six hundred nine billion, three hundred ninety-seven million, six hundred thirty-nine thousand, seven hundred".