2979653985 has 96 divisors (see below), whose sum is σ = 6722352000. Its totient is φ = 1238267520.

The previous prime is 2979653977. The next prime is 2979653987. The reversal of 2979653985 is 5893569792.

2979653985 is a `hidden beast` number, since 2 + 9 + 7 + 96 + 539 + 8 + 5 = 666.

2979653985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2979653985 - 2³ = 2979653977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (2979653987) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 52291 + ... + 93239.

It is an arithmetic number, because the mean of its divisors is an integer number (70024500).

Almost surely, 2^2979653985 is an apocalyptic number.

It is an amenable number.

2979653985 is an abundant number, since it is smaller than the sum of its proper divisors (3742698015).

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

2979653985 is a wasteful number, since it uses less digits than its factorization.

2979653985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40988 (or 40975 counting only the distinct ones).

The product of its digits is 36741600, while the sum is 63.

The square root of 2979653985 is about 54586.2069116366. The cubic root of 2979653985 is about 1438.9817236859.

The spelling of 2979653985 in words is "two billion, nine hundred seventy-nine million, six hundred fifty-three thousand, nine hundred eighty-five".