2978592981 has 64 divisors (see below), whose sum is σ = 5060622336. Its totient is φ = 1516320000.

The previous prime is 2978592979. The next prime is 2978592983. The reversal of 2978592981 is 1892958792.

2978592981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2978592979) and next prime (2978592983).

It is not a de Polignac number, because 2978592981 - 2¹ = 2978592979 is a prime.

It is a super-2 number, since 2×2978592981² = 17744032292924932722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978592983) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1322106 + ... + 1324356.

It is an arithmetic number, because the mean of its divisors is an integer number (79072224).

Almost surely, 2^2978592981 is an apocalyptic number.

2978592981 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2978592981 is a deficient number, since it is larger than the sum of its proper divisors (2082029355).

2978592981 is a wasteful number, since it uses less digits than its factorization.

2978592981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442.

The product of its digits is 6531840, while the sum is 60.

The square root of 2978592981 is about 54576.4874373571. The cubic root of 2978592981 is about 1438.8109044536.

The spelling of 2978592981 in words is "two billion, nine hundred seventy-eight million, five hundred ninety-two thousand, nine hundred eighty-one".