19270615992 has 32 divisors (see below), whose sum is σ = 48786374400. Its totient is φ = 6342227424.

The previous prime is 19270615961. The next prime is 19270615997. The reversal of 19270615992 is 29951607291.

It is a super-2 number, since 2×19270615992² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19270615997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5080018 + ... + 5083809.

It is an arithmetic number, because the mean of its divisors is an integer number (1524574200).

Almost surely, 2^19270615992 is an apocalyptic number.

19270615992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19270615992 is an abundant number, since it is smaller than the sum of its proper divisors (29515758408).

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

19270615992 is a wasteful number, since it uses less digits than its factorization.

19270615992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10163915 (or 10163911 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 51.

The spelling of 19270615992 in words is "nineteen billion, two hundred seventy million, six hundred fifteen thousand, nine hundred ninety-two".