7312715536 has 160 divisors (see below), whose sum is σ = 17042623488. Its totient is φ = 2975132160.

The previous prime is 7312715533. The next prime is 7312715537. The reversal of 7312715536 is 6355172137.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7312715533) 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 in 31 ways as a sum of consecutive naturals, for example, 42269946 + ... + 42270118.

Almost surely, 2^7312715536 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 7312715536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8521311744).

7312715536 is an abundant number, since it is smaller than the sum of its proper divisors (9729907952).

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

7312715536 is a wasteful number, since it uses less digits than its factorization.

7312715536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 423 counting only the distinct ones).

The product of its digits is 132300, while the sum is 40.

The square root of 7312715536 is about 85514.4171236640. The cubic root of 7312715536 is about 1941.0030891502.

The spelling of 7312715536 in words is "seven billion, three hundred twelve million, seven hundred fifteen thousand, five hundred thirty-six".