19487504016 has 80 divisors (see below), whose sum is σ = 57300707520. Its totient is φ = 6337393920.

The previous prime is 19487503999. The next prime is 19487504027. The reversal of 19487504016 is 61040578491.

19487504016 is a `hidden beast` number, since 194 + 8 + 7 + 50 + 401 + 6 = 666.

It is a super-2 number, since 2×19487504016² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 532410 + ... + 567833.

It is an arithmetic number, because the mean of its divisors is an integer number (716258844).

Almost surely, 2^19487504016 is an apocalyptic number.

19487504016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19487504016 is an abundant number, since it is smaller than the sum of its proper divisors (37813203504).

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

19487504016 is a wasteful number, since it uses less digits than its factorization.

19487504016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100301 (or 1100289 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 19487504016 in words is "nineteen billion, four hundred eighty-seven million, five hundred four thousand, sixteen".