19447464870 has 48 divisors (see below), whose sum is σ = 50570462592. Its totient is φ = 5185267200.

The previous prime is 19447464863. The next prime is 19447464889. The reversal of 19447464870 is 7846474491.

19447464870 is a `hidden beast` number, since 1 + 94 + 4 + 74 + 6 + 487 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1047670 + ... + 1066070.

It is an arithmetic number, because the mean of its divisors is an integer number (1053551304).

Almost surely, 2^19447464870 is an apocalyptic number.

19447464870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19447464870 is an abundant number, since it is smaller than the sum of its proper divisors (31122997722).

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

19447464870 is a wasteful number, since it uses less digits than its factorization.

19447464870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30157 (or 30154 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 19447464870 in words is "nineteen billion, four hundred forty-seven million, four hundred sixty-four thousand, eight hundred seventy".