19985132592 has 70 divisors (see below), whose sum is σ = 58055267732. Its totient is φ = 6661706976.

The previous prime is 19985132581. The next prime is 19985132621. The reversal of 19985132592 is 29523158991.

It is a happy number.

19985132592 is a `hidden beast` number, since 19 + 9 + 8 + 5 + 1 + 32 + 592 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 845038 + ... + 868365.

Almost surely, 2^19985132592 is an apocalyptic number.

19985132592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19985132592 is an abundant number, since it is smaller than the sum of its proper divisors (38070135140).

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

19985132592 is an equidigital number, since it uses as much as digits as its factorization.

19985132592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713429 (or 1713408 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 54.

The spelling of 19985132592 in words is "nineteen billion, nine hundred eighty-five million, one hundred thirty-two thousand, five hundred ninety-two".