7312818020 has 24 divisors (see below), whose sum is σ = 15358568568. Its totient is φ = 2924812800.

The previous prime is 7312818017. The next prime is 7312818041. The reversal of 7312818020 is 208182137.

It can be written as a sum of positive squares in 4 ways, for example, as 609793636 + 6703024384 = 24694^2 + 81872^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 290330 + ... + 314510.

It is an arithmetic number, because the mean of its divisors is an integer number (639940357).

Almost surely, 2^7312818020 is an apocalyptic number.

It is an amenable number.

7312818020 is an abundant number, since it is smaller than the sum of its proper divisors (8045750548).

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

7312818020 is a wasteful number, since it uses less digits than its factorization.

7312818020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39311 (or 39309 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 7312818020 is about 85515.0163421606. The cubic root of 7312818020 is about 1941.0121564992.

The spelling of 7312818020 in words is "seven billion, three hundred twelve million, eight hundred eighteen thousand, twenty".