31474420160 has 112 divisors (see below), whose sum is σ = 79983811584. Its totient is φ = 11755634688.

The previous prime is 31474420147. The next prime is 31474420169. The reversal of 31474420160 is 6102447413.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31474420169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 668102 + ... + 713658.

Almost surely, 2^31474420160 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 31474420160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39991905792).

31474420160 is an abundant number, since it is smaller than the sum of its proper divisors (48509391424).

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

31474420160 is a wasteful number, since it uses less digits than its factorization.

31474420160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45718 (or 45708 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

Adding to 31474420160 its reverse (6102447413), we get a palindrome (37576867573).

The spelling of 31474420160 in words is "thirty-one billion, four hundred seventy-four million, four hundred twenty thousand, one hundred sixty".