396226626517 has 4 divisors (see below), whose sum is σ = 396492017580. Its totient is φ = 395961235456.

The previous prime is 396226626493. The next prime is 396226626529. The reversal of 396226626517 is 715626622693.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 261694656721 + 134531969796 = 511561^2 + 366786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396226626517 is a prime.

It is a super-2 number, since 2×396226626517² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396226621517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132693292 + ... + 132696277.

It is an arithmetic number, because the mean of its divisors is an integer number (99123004395).

Almost surely, 2^396226626517 is an apocalyptic number.

It is an amenable number.

396226626517 is a deficient number, since it is larger than the sum of its proper divisors (265391063).

396226626517 is a wasteful number, since it uses less digits than its factorization.

396226626517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265391062.

The product of its digits is 9797760, while the sum is 55.

The spelling of 396226626517 in words is "three hundred ninety-six billion, two hundred twenty-six million, six hundred twenty-six thousand, five hundred seventeen".