19862120034 has 24 divisors (see below), whose sum is σ = 45566040780. Its totient is φ = 6231253248.

The previous prime is 19862120029. The next prime is 19862120107. The reversal of 19862120034 is 43002126891.

19862120034 is a `hidden beast` number, since 1 + 9 + 8 + 621 + 20 + 0 + 3 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15688314009 + 4173806025 = 125253^2 + 64605^2 .

It is a super-2 number, since 2×19862120034² (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 11 ways as a sum of consecutive naturals, for example, 32454139 + ... + 32454750.

Almost surely, 2^19862120034 is an apocalyptic number.

19862120034 is an abundant number, since it is smaller than the sum of its proper divisors (25703920746).

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

19862120034 is a wasteful number, since it uses less digits than its factorization.

19862120034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64908914 (or 64908911 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 19862120034 in words is "nineteen billion, eight hundred sixty-two million, one hundred twenty thousand, thirty-four".