2398977977 has 8 divisors (see below), whose sum is σ = 2620048032. Its totient is φ = 2178404800.

The previous prime is 2398977961. The next prime is 2398977989. The reversal of 2398977977 is 7797798932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2398977977 - 2⁴ = 2398977961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2398973977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114083 + ... + 133464.

It is an arithmetic number, because the mean of its divisors is an integer number (327506004).

Almost surely, 2^2398977977 is an apocalyptic number.

It is an amenable number.

2398977977 is a deficient number, since it is larger than the sum of its proper divisors (221070055).

2398977977 is a wasteful number, since it uses less digits than its factorization.

2398977977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248439.

The product of its digits is 84015792, while the sum is 68.

The square root of 2398977977 is about 48979.3627663733. The cubic root of 2398977977 is about 1338.6758243277.

The spelling of 2398977977 in words is "two billion, three hundred ninety-eight million, nine hundred seventy-seven thousand, nine hundred seventy-seven".