397225278695 has 16 divisors (see below), whose sum is σ = 545037086208. Its totient is φ = 272247553440.

The previous prime is 397225278643. The next prime is 397225278707. The reversal of 397225278695 is 596872522793.

It is not a de Polignac number, because 397225278695 - 2²⁶ = 397158169831 is a prime.

It is a Duffinian number.

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, 2751419 + ... + 2892188.

It is an arithmetic number, because the mean of its divisors is an integer number (34064817888).

Almost surely, 2^397225278695 is an apocalyptic number.

397225278695 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

397225278695 is a deficient number, since it is larger than the sum of its proper divisors (147811807513).

397225278695 is a wasteful number, since it uses less digits than its factorization.

397225278695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5645630.

The product of its digits is 114307200, while the sum is 65.

The spelling of 397225278695 in words is "three hundred ninety-seven billion, two hundred twenty-five million, two hundred seventy-eight thousand, six hundred ninety-five".