7880136036964 has 9 divisors (see below), whose sum is σ = 13790247889747. Its totient is φ = 3940065211324.

The previous prime is 7880136036961. The next prime is 7880136037019. The reversal of 7880136036964 is 4696306310887.

The square root of 7880136036964 is 2807158.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×7880136036964² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7880136036961) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4912527 + ... + 6316105.

Almost surely, 2^{7880136036964} is an apocalyptic number.

7880136036964 is the 2807158-th square number.

It is an amenable number.

7880136036964 is a deficient number, since it is larger than the sum of its proper divisors (5910111852783).

7880136036964 is an frugal number, since it uses more digits than its factorization.

7880136036964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807162 (or 1403581 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 61.

The spelling of 7880136036964 in words is "seven trillion, eight hundred eighty billion, one hundred thirty-six million, thirty-six thousand, nine hundred sixty-four".