997579247610 has 64 divisors (see below), whose sum is σ = 2617876195200. Its totient is φ = 241278842880.

The previous prime is 997579247591. The next prime is 997579247611. The reversal of 997579247610 is 16742975799.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (997579247611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3347835 + ... + 3633614.

It is an arithmetic number, because the mean of its divisors is an integer number (40904315550).

Almost surely, 2^997579247610 is an apocalyptic number.

997579247610 is an abundant number, since it is smaller than the sum of its proper divisors (1620296947590).

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

997579247610 is a wasteful number, since it uses less digits than its factorization.

997579247610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6981903.

The product of its (nonzero) digits is 60011280, while the sum is 66.

The spelling of 997579247610 in words is "nine hundred ninety-seven billion, five hundred seventy-nine million, two hundred forty-seven thousand, six hundred ten".