397261133590 has 32 divisors (see below), whose sum is σ = 716234941440. Its totient is φ = 158645710944.

The previous prime is 397261133573. The next prime is 397261133629. The reversal of 397261133590 is 95331162793.

It is a super-2 number, since 2×397261133590² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47047909 + ... + 47056351.

It is an arithmetic number, because the mean of its divisors is an integer number (22382341920).

Almost surely, 2^397261133590 is an apocalyptic number.

397261133590 is a deficient number, since it is larger than the sum of its proper divisors (318973807850).

397261133590 is a wasteful number, since it uses less digits than its factorization.

397261133590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15556.

The product of its (nonzero) digits is 918540, while the sum is 49.

The spelling of 397261133590 in words is "three hundred ninety-seven billion, two hundred sixty-one million, one hundred thirty-three thousand, five hundred ninety".