2571870164 has 6 divisors (see below), whose sum is σ = 4500772794. Its totient is φ = 1285935080.

The previous prime is 2571870149. The next prime is 2571870187. The reversal of 2571870164 is 4610781752.

It can be written as a sum of positive squares in only one way, i.e., 2280826564 + 291043600 = 47758^2 + 17060^2 .

It is a super-2 number, since 2×2571870164² = 13229032280946773792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321483767 + ... + 321483774.

It is an arithmetic number, because the mean of its divisors is an integer number (750128799).

Almost surely, 2^2571870164 is an apocalyptic number.

It is an amenable number.

2571870164 is a deficient number, since it is larger than the sum of its proper divisors (1928902630).

2571870164 is a wasteful number, since it uses less digits than its factorization.

2571870164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642967545 (or 642967543 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 2571870164 is about 50713.6092582652. The cubic root of 2571870164 is about 1370.0918410379.

The spelling of 2571870164 in words is "two billion, five hundred seventy-one million, eight hundred seventy thousand, one hundred sixty-four".