7626491264 has 64 divisors (see below), whose sum is σ = 17409319200. Its totient is φ = 3259944960.

The previous prime is 7626491219. The next prime is 7626491269. The reversal of 7626491264 is 4621946267.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7626491269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337604 + ... + 359484.

Almost surely, 2^7626491264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7626491264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8704659600).

7626491264 is an abundant number, since it is smaller than the sum of its proper divisors (9782827936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7626491264 is a wasteful number, since it uses less digits than its factorization.

7626491264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22291 (or 22279 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The square root of 7626491264 is about 87329.7845182272. The cubic root of 7626491264 is about 1968.3768969910.

The spelling of 7626491264 in words is "seven billion, six hundred twenty-six million, four hundred ninety-one thousand, two hundred sixty-four".