47501831138 has 96 divisors (see below), whose sum is σ = 78888237120. Its totient is φ = 21426387840.

The previous prime is 47501831119. The next prime is 47501831141. The reversal of 47501831138 is 83113810574.

It is a happy number.

It is a super-2 number, since 2×47501831138² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47501831095 and 47501831104.

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 47 ways as a sum of consecutive naturals, for example, 302559356 + ... + 302559512.

It is an arithmetic number, because the mean of its divisors is an integer number (821752470).

Almost surely, 2^47501831138 is an apocalyptic number.

47501831138 is a deficient number, since it is larger than the sum of its proper divisors (31386405982).

47501831138 is a wasteful number, since it uses less digits than its factorization.

47501831138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 47501831138 in words is "forty-seven billion, five hundred one million, eight hundred thirty-one thousand, one hundred thirty-eight".