919890672028 has 12 divisors (see below), whose sum is σ = 1609815718672. Its totient is φ = 459943323840.

The previous prime is 919890671993. The next prime is 919890672037. The reversal of 919890672028 is 820276098919.

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, 1077001 + ... + 1731967.

Almost surely, 2^919890672028 is an apocalyptic number.

It is an amenable number.

919890672028 is a deficient number, since it is larger than the sum of its proper divisors (689925046644).

919890672028 is a wasteful number, since it uses less digits than its factorization.

919890672028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006092 (or 1006090 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 61.

The spelling of 919890672028 in words is "nine hundred nineteen billion, eight hundred ninety million, six hundred seventy-two thousand, twenty-eight".