2979897618 has 32 divisors (see below), whose sum is σ = 6283057536. Its totient is φ = 940313088.

The previous prime is 2979897611. The next prime is 2979897673. The reversal of 2979897618 is 8167989792.

It is not an unprimeable number, because it can be changed into a prime (2979897611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97921 + ... + 124692.

It is an arithmetic number, because the mean of its divisors is an integer number (196345548).

Almost surely, 2^2979897618 is an apocalyptic number.

2979897618 is an abundant number, since it is smaller than the sum of its proper divisors (3303159918).

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

2979897618 is a wasteful number, since it uses less digits than its factorization.

2979897618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222738.

The product of its digits is 27433728, while the sum is 66.

The square root of 2979897618 is about 54588.4385012065. The cubic root of 2979897618 is about 1439.0209423202.

The spelling of 2979897618 in words is "two billion, nine hundred seventy-nine million, eight hundred ninety-seven thousand, six hundred eighteen".