621090550083 has 16 divisors (see below), whose sum is σ = 848631142656. Its totient is φ = 403833612000.

The previous prime is 621090550049. The next prime is 621090550141. The reversal of 621090550083 is 380055090126.

It is not a de Polignac number, because 621090550083 - 2²² = 621086355779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (621090550033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3468543 + ... + 3643208.

It is an arithmetic number, because the mean of its divisors is an integer number (53039446416).

Almost surely, 2^621090550083 is an apocalyptic number.

621090550083 is a deficient number, since it is larger than the sum of its proper divisors (227540592573).

621090550083 is a wasteful number, since it uses less digits than its factorization.

621090550083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7112474.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 621090550083 in words is "six hundred twenty-one billion, ninety million, five hundred fifty thousand, eighty-three".