31480260540 has 96 divisors (see below), whose sum is σ = 93712743936. Its totient is φ = 7878224640.

The previous prime is 31480260529. The next prime is 31480260541. The reversal of 31480260540 is 4506208413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31480260541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142066 + ... + 288345.

It is an arithmetic number, because the mean of its divisors is an integer number (976174416).

Almost surely, 2^31480260540 is an apocalyptic number.

31480260540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31480260540 is an abundant number, since it is smaller than the sum of its proper divisors (62232483396).

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

31480260540 is a wasteful number, since it uses less digits than its factorization.

31480260540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430499 (or 430497 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 31480260540 its reverse (4506208413), we get a palindrome (35986468953).

The spelling of 31480260540 in words is "thirty-one billion, four hundred eighty million, two hundred sixty thousand, five hundred forty".