19133540832 has 96 divisors (see below), whose sum is σ = 57423873024. Its totient is φ = 5464512000.

The previous prime is 19133540831. The next prime is 19133540843. The reversal of 19133540832 is 23804533191.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×19133540832² (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 (19133540831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2402457 + ... + 2410407.

It is an arithmetic number, because the mean of its divisors is an integer number (598165344).

Almost surely, 2^19133540832 is an apocalyptic number.

19133540832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19133540832 is an abundant number, since it is smaller than the sum of its proper divisors (38290332192).

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

19133540832 is a wasteful number, since it uses less digits than its factorization.

19133540832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11552 (or 11544 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 19133540832 in words is "nineteen billion, one hundred thirty-three million, five hundred forty thousand, eight hundred thirty-two".