3131948780 has 24 divisors (see below), whose sum is σ = 6625106208. Its totient is φ = 1243634048.

The previous prime is 3131948779. The next prime is 3131948789. The reversal of 3131948780 is 878491313.

It is not an unprimeable number, because it can be changed into a prime (3131948789) 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, 568784 + ... + 574263.

It is an arithmetic number, because the mean of its divisors is an integer number (276046092).

Almost surely, 2^3131948780 is an apocalyptic number.

It is an amenable number.

3131948780 is an abundant number, since it is smaller than the sum of its proper divisors (3493157428).

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

3131948780 is a wasteful number, since it uses less digits than its factorization.

3131948780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143193 (or 1143191 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 3131948780 is about 55963.8167032950. The cubic root of 3131948780 is about 1463.0917125478.

The spelling of 3131948780 in words is "three billion, one hundred thirty-one million, nine hundred forty-eight thousand, seven hundred eighty".