72715065130 has 32 divisors (see below), whose sum is σ = 131239353168. Its totient is φ = 29007820800.

The previous prime is 72715065121. The next prime is 72715065139. The reversal of 72715065130 is 3156051727.

It is an interprime number because it is at equal distance from previous prime (72715065121) and next prime (72715065139).

It can be written as a sum of positive squares in 8 ways, for example, as 49698230761 + 23016834369 = 222931^2 + 151713^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72715065130.

It is not an unprimeable number, because it can be changed into a prime (72715065139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14108634 + ... + 14113786.

Almost surely, 2^72715065130 is an apocalyptic number.

72715065130 is a deficient number, since it is larger than the sum of its proper divisors (58524288038).

72715065130 is a wasteful number, since it uses less digits than its factorization.

72715065130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8682.

The product of its (nonzero) digits is 44100, while the sum is 37.

The spelling of 72715065130 in words is "seventy-two billion, seven hundred fifteen million, sixty-five thousand, one hundred thirty".