622121315857 has 12 divisors (see below), whose sum is σ = 661381657936. Its totient is φ = 585072048960.

The previous prime is 622121315819. The next prime is 622121315863. The reversal of 622121315857 is 758513121226.

It is not a de Polignac number, because 622121315857 - 2¹¹ = 622121313809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (622121315867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 460623 + ... + 1206820.

Almost surely, 2^622121315857 is an apocalyptic number.

It is an amenable number.

622121315857 is a deficient number, since it is larger than the sum of its proper divisors (39260342079).

622121315857 is a wasteful number, since it uses less digits than its factorization.

622121315857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668768 (or 1668751 counting only the distinct ones).

The product of its digits is 201600, while the sum is 43.

The spelling of 622121315857 in words is "six hundred twenty-two billion, one hundred twenty-one million, three hundred fifteen thousand, eight hundred fifty-seven".