2971563642 has 24 divisors (see below), whose sum is σ = 6595423380. Its totient is φ = 966361920.

The previous prime is 2971563629. The next prime is 2971563689. The reversal of 2971563642 is 2463651792.

2971563642 is a `hidden beast` number, since 2 + 9 + 7 + 1 + 5 + 636 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2739580281 + 231983361 = 52341^2 + 15231^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2012517 + ... + 2013992.

Almost surely, 2^2971563642 is an apocalyptic number.

2971563642 is an abundant number, since it is smaller than the sum of its proper divisors (3623859738).

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

2971563642 is a wasteful number, since it uses less digits than its factorization.

2971563642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4026558 (or 4026555 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 2971563642 is about 54512.0504292400. The cubic root of 2971563642 is about 1437.6781709541.

The spelling of 2971563642 in words is "two billion, nine hundred seventy-one million, five hundred sixty-three thousand, six hundred forty-two".