47765431131 has 16 divisors (see below), whose sum is σ = 73563873408. Its totient is φ = 27245878400.

The previous prime is 47765431127. The next prime is 47765431141. The reversal of 47765431131 is 13113456774.

It is a cyclic number.

It is not a de Polignac number, because 47765431131 - 2² = 47765431127 is a prime.

It is a super-2 number, since 2×47765431131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47765431111) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 42571125 + ... + 42572246.

It is an arithmetic number, because the mean of its divisors is an integer number (4597742088).

Almost surely, 2^47765431131 is an apocalyptic number.

47765431131 is a deficient number, since it is larger than the sum of its proper divisors (25798442277).

47765431131 is a wasteful number, since it uses less digits than its factorization.

47765431131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85143402.

The product of its digits is 211680, while the sum is 42.

The spelling of 47765431131 in words is "forty-seven billion, seven hundred sixty-five million, four hundred thirty-one thousand, one hundred thirty-one".