797340029640 has 128 divisors (see below), whose sum is σ = 2982258846720. Its totient is φ = 165681043200.

The previous prime is 797340029621. The next prime is 797340029671. The reversal of 797340029640 is 46920043797.

It is a super-2 number, since 2×797340029640² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43136866 + ... + 43155345.

It is an arithmetic number, because the mean of its divisors is an integer number (23298897240).

Almost surely, 2^797340029640 is an apocalyptic number.

797340029640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

797340029640 is an abundant number, since it is smaller than the sum of its proper divisors (2184918817080).

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

797340029640 is a wasteful number, since it uses less digits than its factorization.

797340029640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86292243 (or 86292239 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 51.

The spelling of 797340029640 in words is "seven hundred ninety-seven billion, three hundred forty million, twenty-nine thousand, six hundred forty".