19758474980 has 48 divisors (see below), whose sum is σ = 42263254656. Its totient is φ = 7757621760.

The previous prime is 19758474977. The next prime is 19758474997. The reversal of 19758474980 is 8947485791.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291692 + ... + 352988.

It is an arithmetic number, because the mean of its divisors is an integer number (880484472).

Almost surely, 2^19758474980 is an apocalyptic number.

19758474980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19758474980 is an abundant number, since it is smaller than the sum of its proper divisors (22504779676).

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

19758474980 is a wasteful number, since it uses less digits than its factorization.

19758474980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61604 (or 61602 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 62.

The spelling of 19758474980 in words is "nineteen billion, seven hundred fifty-eight million, four hundred seventy-four thousand, nine hundred eighty".