1028971922832 has 200 divisors, whose sum is σ = 3513386573312. Its totient is φ = 284508288000.

The previous prime is 1028971922809. The next prime is 1028971922879. The reversal of 1028971922832 is 2382291798201.

1028971922832 is a `hidden beast` number, since 10 + 289 + 71 + 9 + 2 + 283 + 2 = 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 39 ways as a sum of consecutive naturals, for example, 1548169 + ... + 2110632.

Almost surely, 2^{1028971922832} is an apocalyptic number.

1028971922832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1028971922832 is an abundant number, since it is smaller than the sum of its proper divisors (2484414650480).

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

1028971922832 is a wasteful number, since it uses less digits than its factorization.

1028971922832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3658859 (or 3658844 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 1028971922832 in words is "one trillion, twenty-eight billion, nine hundred seventy-one million, nine hundred twenty-two thousand, eight hundred thirty-two".