2860656981 has 16 divisors (see below), whose sum is σ = 4694411904. Its totient is φ = 1508917824.

The previous prime is 2860656979. The next prime is 2860656983. The reversal of 2860656981 is 1896560682.

It is an interprime number because it is at equal distance from previous prime (2860656979) and next prime (2860656983).

It is not a de Polignac number, because 2860656981 - 2¹ = 2860656979 is a prime.

It is a super-2 number, since 2×2860656981² = 16366716725888068722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2860656983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5239026 + ... + 5239571.

It is an arithmetic number, because the mean of its divisors is an integer number (293400744).

Almost surely, 2^2860656981 is an apocalyptic number.

2860656981 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2860656981 is a deficient number, since it is larger than the sum of its proper divisors (1833754923).

2860656981 is a wasteful number, since it uses less digits than its factorization.

2860656981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10478620.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 2860656981 is about 53485.1098998590. The cubic root of 2860656981 is about 1419.5649300279.

The spelling of 2860656981 in words is "two billion, eight hundred sixty million, six hundred fifty-six thousand, nine hundred eighty-one".