397261668248 has 48 divisors (see below), whose sum is σ = 756204996960. Its totient is φ = 195650894400.

The previous prime is 397261668149. The next prime is 397261668269. The reversal of 397261668248 is 842866162793.

It is a super-2 number, since 2×397261668248² (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 11 ways as a sum of consecutive naturals, for example, 21509738 + ... + 21528198.

It is an arithmetic number, because the mean of its divisors is an integer number (15754270770).

Almost surely, 2^397261668248 is an apocalyptic number.

It is an amenable number.

397261668248 is a deficient number, since it is larger than the sum of its proper divisors (358943328712).

397261668248 is a wasteful number, since it uses less digits than its factorization.

397261668248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19056 (or 18973 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 62.

The spelling of 397261668248 in words is "three hundred ninety-seven billion, two hundred sixty-one million, six hundred sixty-eight thousand, two hundred forty-eight".