626540147357868 has 84 divisors (see below), whose sum is σ = 1654948860289200. Its totient is φ = 207445059831456.

The previous prime is 626540147357791. The next prime is 626540147357879. The reversal of 626540147357868 is 868753741045626.

626540147357868 is a `hidden beast` number, since 6 + 2 + 6 + 5 + 4 + 0 + 1 + 47 + 3 + 578 + 6 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 626540147357796 and 626540147357805.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 720581880 + ... + 721450847.

It is an arithmetic number, because the mean of its divisors is an integer number (19701772146300).

Almost surely, 2^{626540147357868} is an apocalyptic number.

It is an amenable number.

626540147357868 is an abundant number, since it is smaller than the sum of its proper divisors (1028408712931332).

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

626540147357868 is a wasteful number, since it uses less digits than its factorization.

626540147357868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442032898 (or 1442032881 counting only the distinct ones).

The product of its (nonzero) digits is 1625702400, while the sum is 72.

The spelling of 626540147357868 in words is "six hundred twenty-six trillion, five hundred forty billion, one hundred forty-seven million, three hundred fifty-seven thousand, eight hundred sixty-eight".