2531640316 has 6 divisors (see below), whose sum is σ = 4430370560. Its totient is φ = 1265820156.

The previous prime is 2531640311. The next prime is 2531640317. The reversal of 2531640316 is 6130461352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531640311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316455036 + ... + 316455043.

Almost surely, 2^2531640316 is an apocalyptic number.

It is an amenable number.

2531640316 is a deficient number, since it is larger than the sum of its proper divisors (1898730244).

2531640316 is a wasteful number, since it uses less digits than its factorization.

2531640316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632910083 (or 632910081 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 2531640316 is about 50315.4083358170. The cubic root of 2531640316 is about 1362.9104905292.

The spelling of 2531640316 in words is "two billion, five hundred thirty-one million, six hundred forty thousand, three hundred sixteen".