10621896643044 has 48 divisors (see below), whose sum is σ = 28487845411200. Its totient is φ = 3418541447328.

The previous prime is 10621896643021. The next prime is 10621896643109. The reversal of 10621896643044 is 44034669812601.

10621896643044 is a `hidden beast` number, since 1 + 0 + 621 + 8 + 9 + 6 + 6 + 4 + 3 + 0 + 4 + 4 = 666.

It is a super-2 number, since 2×10621896643044² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 1695701952 + ... + 1695708215.

It is an arithmetic number, because the mean of its divisors is an integer number (593496779400).

Almost surely, 2^{10621896643044} is an apocalyptic number.

It is an amenable number.

10621896643044 is an abundant number, since it is smaller than the sum of its proper divisors (17865948768156).

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

10621896643044 is a wasteful number, since it uses less digits than its factorization.

10621896643044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391410209 (or 3391410201 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 10621896643044 in words is "ten trillion, six hundred twenty-one billion, eight hundred ninety-six million, six hundred forty-three thousand, forty-four".