2564747862 has 16 divisors (see below), whose sum is σ = 5294963712. Its totient is φ = 827337960.

The previous prime is 2564747827. The next prime is 2564747863. The reversal of 2564747862 is 2687474652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564747863) 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, 6894298 + ... + 6894669.

It is an arithmetic number, because the mean of its divisors is an integer number (330935232).

Almost surely, 2^2564747862 is an apocalyptic number.

2564747862 is an abundant number, since it is smaller than the sum of its proper divisors (2730215850).

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

2564747862 is a wasteful number, since it uses less digits than its factorization.

2564747862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13789003.

The product of its digits is 4515840, while the sum is 51.

The square root of 2564747862 is about 50643.3397595380. The cubic root of 2564747862 is about 1368.8259360803.

The spelling of 2564747862 in words is "two billion, five hundred sixty-four million, seven hundred forty-seven thousand, eight hundred sixty-two".