7626854864 has 20 divisors (see below), whose sum is σ = 14778728580. Its totient is φ = 3812989440.

The previous prime is 7626854863. The next prime is 7626854867. The reversal of 7626854864 is 4684586267.

It can be written as a sum of positive squares in 2 ways, for example, as 5432869264 + 2193985600 = 73708^2 + 46840^2 .

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7626854863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151832 + ... + 195720.

It is an arithmetic number, because the mean of its divisors is an integer number (738936429).

Almost surely, 2^7626854864 is an apocalyptic number.

It is an amenable number.

7626854864 is a deficient number, since it is larger than the sum of its proper divisors (7151873716).

7626854864 is a wasteful number, since it uses less digits than its factorization.

7626854864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54758 (or 54752 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 56.

The square root of 7626854864 is about 87331.8662573977. The cubic root of 7626854864 is about 1968.4081778882.

The spelling of 7626854864 in words is "seven billion, six hundred twenty-six million, eight hundred fifty-four thousand, eight hundred sixty-four".