87372578662713 has 6 divisors (see below), whose sum is σ = 126204835846154. Its totient is φ = 58248385775136.

The previous prime is 87372578662679. The next prime is 87372578662753. The reversal of 87372578662713 is 31726687527378.

87372578662713 is a `hidden beast` number, since 8 + 7 + 37 + 2 + 578 + 6 + 6 + 2 + 7 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 70275577600809 + 17097001061904 = 8383053^2 + 4134852^2 .

It is not a de Polignac number, because 87372578662713 - 2¹³ = 87372578654521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87372578662753) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4854032147920 + ... + 4854032147937.

Almost surely, 2^{87372578662713} is an apocalyptic number.

It is an amenable number.

87372578662713 is a deficient number, since it is larger than the sum of its proper divisors (38832257183441).

87372578662713 is a wasteful number, since it uses less digits than its factorization.

87372578662713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9708064295863 (or 9708064295860 counting only the distinct ones).

The product of its digits is 995742720, while the sum is 72.

The spelling of 87372578662713 in words is "eighty-seven trillion, three hundred seventy-two billion, five hundred seventy-eight million, six hundred sixty-two thousand, seven hundred thirteen".