397795064742 has 80 divisors (see below), whose sum is σ = 947013827760. Its totient is φ = 124565781312.

The previous prime is 397795064717. The next prime is 397795064743. The reversal of 397795064742 is 247460597793.

397795064742 is a `hidden beast` number, since 3 + 9 + 77 + 95 + 0 + 6 + 474 + 2 = 666.

It is a super-3 number, since 3×397795064742³ (a number of 36 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 397795064742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397795064743) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 970408 + ... + 1318059.

It is an arithmetic number, because the mean of its divisors is an integer number (11837672847).

Almost surely, 2^397795064742 is an apocalyptic number.

397795064742 is an abundant number, since it is smaller than the sum of its proper divisors (549218763018).

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

397795064742 is a wasteful number, since it uses less digits than its factorization.

397795064742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288547 (or 2288538 counting only the distinct ones).

The product of its (nonzero) digits is 80015040, while the sum is 63.

The spelling of 397795064742 in words is "three hundred ninety-seven billion, seven hundred ninety-five million, sixty-four thousand, seven hundred forty-two".