2564206723 has 16 divisors (see below), whose sum is σ = 2780205120. Its totient is φ = 2350947456.

The previous prime is 2564206717. The next prime is 2564206741. The reversal of 2564206723 is 3276024652.

It is not a de Polignac number, because 2564206723 - 2⁵ = 2564206691 is a prime.

It is a super-2 number, since 2×2564206723² = 13150312236556797458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2564206753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1387386 + ... + 1389232.

It is an arithmetic number, because the mean of its divisors is an integer number (173762820).

Almost surely, 2^2564206723 is an apocalyptic number.

2564206723 is a deficient number, since it is larger than the sum of its proper divisors (215998397).

2564206723 is a wasteful number, since it uses less digits than its factorization.

2564206723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 2564206723 is about 50637.9968304434. The cubic root of 2564206723 is about 1368.7296592739.

The spelling of 2564206723 in words is "two billion, five hundred sixty-four million, two hundred six thousand, seven hundred twenty-three".