4621990157568 has 216 divisors, whose sum is σ = 16031684760000. Its totient is φ = 1251064922112.

The previous prime is 4621990157531. The next prime is 4621990157581. The reversal of 4621990157568 is 8657510991264.

4621990157568 is a `hidden beast` number, since 4 + 6 + 2 + 19 + 9 + 0 + 1 + 57 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7235193 + ... + 7848056.

Almost surely, 2^{4621990157568} is an apocalyptic number.

4621990157568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4621990157568 is an abundant number, since it is smaller than the sum of its proper divisors (11409694602432).

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

4621990157568 is a wasteful number, since it uses less digits than its factorization.

4621990157568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15083297 (or 15083280 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 63.

The spelling of 4621990157568 in words is "four trillion, six hundred twenty-one billion, nine hundred ninety million, one hundred fifty-seven thousand, five hundred sixty-eight".