621633336042 has 64 divisors (see below), whose sum is σ = 1344612234240. Its totient is φ = 190871774976.

The previous prime is 621633335969. The next prime is 621633336043. The reversal of 621633336042 is 240633336126.

It is not an unprimeable number, because it can be changed into a prime (621633336043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1138563 + ... + 1593609.

It is an arithmetic number, because the mean of its divisors is an integer number (21009566160).

Almost surely, 2^621633336042 is an apocalyptic number.

621633336042 is an abundant number, since it is smaller than the sum of its proper divisors (722978898198).

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

621633336042 is a wasteful number, since it uses less digits than its factorization.

621633336042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455355.

The product of its (nonzero) digits is 279936, while the sum is 39.

The spelling of 621633336042 in words is "six hundred twenty-one billion, six hundred thirty-three million, three hundred thirty-six thousand, forty-two".