621381124896 has 96 divisors (see below), whose sum is σ = 1924277096448. Its totient is φ = 171810443520.

The previous prime is 621381124801. The next prime is 621381124951. The reversal of 621381124896 is 698421183126.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×621381124896² (a number of 24 digits) contains 22 as substring.

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, 14893270 + ... + 14934933.

It is an arithmetic number, because the mean of its divisors is an integer number (20044553088).

Almost surely, 2^621381124896 is an apocalyptic number.

It is an amenable number.

621381124896 is an abundant number, since it is smaller than the sum of its proper divisors (1302895971552).

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

621381124896 is a wasteful number, since it uses less digits than its factorization.

621381124896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29828254 (or 29828246 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The spelling of 621381124896 in words is "six hundred twenty-one billion, three hundred eighty-one million, one hundred twenty-four thousand, eight hundred ninety-six".