621073327573244 has 48 divisors (see below), whose sum is σ = 1408101471436800. Its totient is φ = 232767794252736.

The previous prime is 621073327573243. The next prime is 621073327573267. The reversal of 621073327573244 is 442375723370126.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 621073327573244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621073327573243) 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, 44901187964 + ... + 44901201795.

It is an arithmetic number, because the mean of its divisors is an integer number (29335447321600).

Almost surely, 2^{621073327573244} is an apocalyptic number.

It is an amenable number.

621073327573244 is an abundant number, since it is smaller than the sum of its proper divisors (787028143863556).

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

621073327573244 is a wasteful number, since it uses less digits than its factorization.

621073327573244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89802389802 (or 89802389800 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 56.

The spelling of 621073327573244 in words is "six hundred twenty-one trillion, seventy-three billion, three hundred twenty-seven million, five hundred seventy-three thousand, two hundred forty-four".