397225278696 has 32 divisors (see below), whose sum is σ = 993103610400. Its totient is φ = 132403037760.

The previous prime is 397225278643. The next prime is 397225278707. The reversal of 397225278696 is 696872522793.

It is a super-2 number, since 2×397225278696² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288975 + ... + 936993.

It is an arithmetic number, because the mean of its divisors is an integer number (31034487825).

Almost surely, 2^397225278696 is an apocalyptic number.

It is an amenable number.

397225278696 is an abundant number, since it is smaller than the sum of its proper divisors (595878331704).

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

397225278696 is a wasteful number, since it uses less digits than its factorization.

397225278696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673569 (or 673565 counting only the distinct ones).

The product of its digits is 137168640, while the sum is 66.

The spelling of 397225278696 in words is "three hundred ninety-seven billion, two hundred twenty-five million, two hundred seventy-eight thousand, six hundred ninety-six".