621252116492 has 48 divisors (see below), whose sum is σ = 1247924536320. Its totient is φ = 265089888000.

The previous prime is 621252116489. The next prime is 621252116503. The reversal of 621252116492 is 294611252126.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53647559 + ... + 53659137.

It is an arithmetic number, because the mean of its divisors is an integer number (25998427840).

Almost surely, 2^621252116492 is an apocalyptic number.

It is an amenable number.

621252116492 is an abundant number, since it is smaller than the sum of its proper divisors (626672419828).

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

621252116492 is a wasteful number, since it uses less digits than its factorization.

621252116492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19782 (or 19780 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The spelling of 621252116492 in words is "six hundred twenty-one billion, two hundred fifty-two million, one hundred sixteen thousand, four hundred ninety-two".