2956860981 has 12 divisors (see below), whose sum is σ = 4271580300. Its totient is φ = 1970982720.

The previous prime is 2956860923. The next prime is 2956861009. The reversal of 2956860981 is 1890686592.

It is a happy number.

2956860981 is a `hidden beast` number, since 29 + 5 + 6 + 8 + 609 + 8 + 1 = 666.

2956860981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3481956 + 2953379025 = 1866^2 + 54345^2 .

It is not a de Polignac number, because 2956860981 - 2¹⁵ = 2956828213 is a prime.

It is a super-2 number, since 2×2956860981² = 17486053721920564722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2956860581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72945 + ... + 105993.

It is an arithmetic number, because the mean of its divisors is an integer number (355965025).

Almost surely, 2^2956860981 is an apocalyptic number.

It is an amenable number.

2956860981 is a deficient number, since it is larger than the sum of its proper divisors (1314719319).

2956860981 is a wasteful number, since it uses less digits than its factorization.

2956860981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42996 (or 42993 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The square root of 2956860981 is about 54377.0262243165. The cubic root of 2956860981 is about 1435.3031416131.

The spelling of 2956860981 in words is "two billion, nine hundred fifty-six million, eight hundred sixty thousand, nine hundred eighty-one".