2571572412 has 18 divisors (see below), whose sum is σ = 6500363688. Its totient is φ = 857190792.

The previous prime is 2571572401. The next prime is 2571572519. The reversal of 2571572412 is 2142751752.

2571572412 is a `hidden beast` number, since 2 + 5 + 71 + 572 + 4 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2571572412² = 13225969340318995488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 71432567 = 2571572412 / (2 + 5 + 7 + 1 + 5 + 7 + 2 + 4 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35716248 + ... + 35716319.

It is an arithmetic number, because the mean of its divisors is an integer number (361131316).

Almost surely, 2^2571572412 is an apocalyptic number.

It is an amenable number.

2571572412 is an abundant number, since it is smaller than the sum of its proper divisors (3928791276).

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

2571572412 is a wasteful number, since it uses less digits than its factorization.

2571572412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71432577 (or 71432572 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 2571572412 is about 50710.6735510385. The cubic root of 2571572412 is about 1370.0389659828.

The spelling of 2571572412 in words is "two billion, five hundred seventy-one million, five hundred seventy-two thousand, four hundred twelve".