100454157621 has 48 divisors (see below), whose sum is σ = 150697205568. Its totient is φ = 64429344000.

The previous prime is 100454157571. The next prime is 100454157653. The reversal of 100454157621 is 126751454001.

100454157621 is a `hidden beast` number, since 1 + 0 + 0 + 4 + 541 + 57 + 62 + 1 = 666.

It is not a de Polignac number, because 100454157621 - 2¹⁴ = 100454141237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100454152621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21411886 + ... + 21416576.

It is an arithmetic number, because the mean of its divisors is an integer number (3139525116).

Almost surely, 2^100454157621 is an apocalyptic number.

It is an amenable number.

100454157621 is a deficient number, since it is larger than the sum of its proper divisors (50243047947).

100454157621 is a wasteful number, since it uses less digits than its factorization.

100454157621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5442 (or 5439 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 100454157621 in words is "one hundred billion, four hundred fifty-four million, one hundred fifty-seven thousand, six hundred twenty-one".