19004686512 has 160 divisors (see below), whose sum is σ = 61015951872. Its totient is φ = 4972326912.

The previous prime is 19004686489. The next prime is 19004686553. The reversal of 19004686512 is 21568640091.

It is a super-2 number, since 2×19004686512² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166383 + ... + 256305.

Almost surely, 2^19004686512 is an apocalyptic number.

19004686512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19004686512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30507975936).

19004686512 is an abundant number, since it is smaller than the sum of its proper divisors (42011265360).

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

19004686512 is a wasteful number, since it uses less digits than its factorization.

19004686512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89995 (or 89989 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 19004686512 in words is "nineteen billion, four million, six hundred eighty-six thousand, five hundred twelve".