31860431416 has 64 divisors (see below), whose sum is σ = 66057003360. Its totient is φ = 14285760000.

The previous prime is 31860431411. The next prime is 31860431429. The reversal of 31860431416 is 61413406813.

It is a super-3 number, since 3×31860431416³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31860431411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2455506 + ... + 2468446.

Almost surely, 2^31860431416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31860431416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33028501680).

31860431416 is an abundant number, since it is smaller than the sum of its proper divisors (34196571944).

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

31860431416 is a wasteful number, since it uses less digits than its factorization.

31860431416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13336 (or 13332 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 31860431416 in words is "thirty-one billion, eight hundred sixty million, four hundred thirty-one thousand, four hundred sixteen".