46451971139 has 12 divisors (see below), whose sum is σ = 54267893784. Its totient is φ = 39645081504.

The previous prime is 46451971129. The next prime is 46451971169. The reversal of 46451971139 is 93117915464.

It is not a de Polignac number, because 46451971139 - 2²⁰ = 46450922563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46451971109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2022917 + ... + 2045750.

It is an arithmetic number, because the mean of its divisors is an integer number (4522324482).

Almost surely, 2^46451971139 is an apocalyptic number.

46451971139 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

46451971139 is a deficient number, since it is larger than the sum of its proper divisors (7815922645).

46451971139 is a wasteful number, since it uses less digits than its factorization.

46451971139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068914 (or 4068907 counting only the distinct ones).

The product of its digits is 816480, while the sum is 50.

The spelling of 46451971139 in words is "forty-six billion, four hundred fifty-one million, nine hundred seventy-one thousand, one hundred thirty-nine".