47717742531 has 8 divisors (see below), whose sum is σ = 63632161984. Its totient is φ = 31807575720.

The previous prime is 47717742517. The next prime is 47717742559. The reversal of 47717742531 is 13524771774.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-47717742531 is a prime.

It is a super-3 number, since 3×47717742531³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47717742931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036885 + ... + 1081926.

It is an arithmetic number, because the mean of its divisors is an integer number (7954020248).

Almost surely, 2^47717742531 is an apocalyptic number.

47717742531 is a deficient number, since it is larger than the sum of its proper divisors (15914419453).

47717742531 is a wasteful number, since it uses less digits than its factorization.

47717742531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126321.

The product of its digits is 1152480, while the sum is 48.

The spelling of 47717742531 in words is "forty-seven billion, seven hundred seventeen million, seven hundred forty-two thousand, five hundred thirty-one".