7859040564 has 12 divisors (see below), whose sum is σ = 18337761344. Its totient is φ = 2619680184.

The previous prime is 7859040559. The next prime is 7859040569. The reversal of 7859040564 is 4650409587.

It is an interprime number because it is at equal distance from previous prime (7859040559) and next prime (7859040569).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7859040569) 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, 327460012 + ... + 327460035.

Almost surely, 2^7859040564 is an apocalyptic number.

It is an amenable number.

7859040564 is an abundant number, since it is smaller than the sum of its proper divisors (10478720780).

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

7859040564 is a wasteful number, since it uses less digits than its factorization.

7859040564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654920054 (or 654920052 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The square root of 7859040564 is about 88651.2299068659. The cubic root of 7859040564 is about 1988.1837054118.

The spelling of 7859040564 in words is "seven billion, eight hundred fifty-nine million, forty thousand, five hundred sixty-four".