2056974787 has 32 divisors (see below), whose sum is σ = 2452230144. Its totient is φ = 1689120000.

The previous prime is 2056974779. The next prime is 2056974793. The reversal of 2056974787 is 7874796502.

It is a cyclic number.

It is not a de Polignac number, because 2056974787 - 2³ = 2056974779 is a prime.

It is a super-2 number, since 2×2056974787² = 8462290548707390738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2056974737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3422287 + ... + 3422887.

It is an arithmetic number, because the mean of its divisors is an integer number (76632192).

Almost surely, 2^2056974787 is an apocalyptic number.

2056974787 is a deficient number, since it is larger than the sum of its proper divisors (395255357).

2056974787 is a wasteful number, since it uses less digits than its factorization.

2056974787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The square root of 2056974787 is about 45353.8839240919. The cubic root of 2056974787 is about 1271.7731627051.

The spelling of 2056974787 in words is "two billion, fifty-six million, nine hundred seventy-four thousand, seven hundred eighty-seven".