1046991721032 has 96 divisors (see below), whose sum is σ = 3024318562200. Its totient is φ = 326070362112.

The previous prime is 1046991720991. The next prime is 1046991721043. The reversal of 1046991721032 is 2301271996401.

1046991721032 is a `hidden beast` number, since 1 + 0 + 469 + 9 + 172 + 10 + 3 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1040412240036 + 6579480996 = 1020006^2 + 81114^2 .

It is a super-2 number, since 2×1046991721032² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2954157 + ... + 3289532.

Almost surely, 2^{1046991721032} is an apocalyptic number.

1046991721032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1046991721032 is an abundant number, since it is smaller than the sum of its proper divisors (1977326841168).

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

1046991721032 is a wasteful number, since it uses less digits than its factorization.

1046991721032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6243855 (or 6243848 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 1046991721032 in words is "one trillion, forty-six billion, nine hundred ninety-one million, seven hundred twenty-one thousand, thirty-two".