100398267644 has 12 divisors (see below), whose sum is σ = 175699419168. Its totient is φ = 50198433600.

The previous prime is 100398267623. The next prime is 100398267659. The reversal of 100398267644 is 446762893001.

It is a junction number, because it is equal to n+sod(n) for n = 100398267592 and 100398267601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277604 + ... + 527124.

It is an arithmetic number, because the mean of its divisors is an integer number (14641618264).

Almost surely, 2^100398267644 is an apocalyptic number.

It is an amenable number.

100398267644 is a deficient number, since it is larger than the sum of its proper divisors (75301151524).

100398267644 is a wasteful number, since it uses less digits than its factorization.

100398267644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350116 (or 350114 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 100398267644 in words is "one hundred billion, three hundred ninety-eight million, two hundred sixty-seven thousand, six hundred forty-four".