621141849018 has 48 divisors (see below), whose sum is σ = 1348448774400. Its totient is φ = 206641290240.

The previous prime is 621141848983. The next prime is 621141849019. The reversal of 621141849018 is 810948141126.

621141849018 is a `hidden beast` number, since 6 + 2 + 1 + 141 + 8 + 490 + 18 = 666.

It is not an unprimeable number, because it can be changed into a prime (621141849019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20991738 + ... + 21021306.

It is an arithmetic number, because the mean of its divisors is an integer number (28092682800).

Almost surely, 2^621141849018 is an apocalyptic number.

621141849018 is an abundant number, since it is smaller than the sum of its proper divisors (727306925382).

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

621141849018 is a wasteful number, since it uses less digits than its factorization.

621141849018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31827 (or 31824 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The spelling of 621141849018 in words is "six hundred twenty-one billion, one hundred forty-one million, eight hundred forty-nine thousand, eighteen".