7642700756065 has 16 divisors (see below), whose sum is σ = 9298162189008. Its totient is φ = 6029569622016.

The previous prime is 7642700756057. The next prime is 7642700756081. The reversal of 7642700756065 is 5606570072467.

It can be written as a sum of positive squares in 8 ways, for example, as 785797148304 + 6856903607761 = 886452^2 + 2618569^2 .

It is a cyclic number.

It is not a de Polignac number, because 7642700756065 - 2³ = 7642700756057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7642700755997 and 7642700756015.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194849 + ... + 4088161.

It is an arithmetic number, because the mean of its divisors is an integer number (581135136813).

Almost surely, 2^{7642700756065} is an apocalyptic number.

It is an amenable number.

7642700756065 is a deficient number, since it is larger than the sum of its proper divisors (1655461432943).

7642700756065 is a wasteful number, since it uses less digits than its factorization.

7642700756065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900628.

The product of its (nonzero) digits is 14817600, while the sum is 55.

The spelling of 7642700756065 in words is "seven trillion, six hundred forty-two billion, seven hundred million, seven hundred fifty-six thousand, sixty-five".