19456824980 has 24 divisors (see below), whose sum is σ = 43009824480. Its totient is φ = 7373112480.

The previous prime is 19456824889. The next prime is 19456824997. The reversal of 19456824980 is 8942865491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25600706 + ... + 25601465.

It is an arithmetic number, because the mean of its divisors is an integer number (1792076020).

Almost surely, 2^19456824980 is an apocalyptic number.

19456824980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19456824980 is an abundant number, since it is smaller than the sum of its proper divisors (23552999500).

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

19456824980 is a wasteful number, since it uses less digits than its factorization.

19456824980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51202199 (or 51202197 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 56.

The spelling of 19456824980 in words is "nineteen billion, four hundred fifty-six million, eight hundred twenty-four thousand, nine hundred eighty".