2978177313 has 16 divisors (see below), whose sum is σ = 4027627520. Its totient is φ = 1957170384.

The previous prime is 2978177309. The next prime is 2978177353. The reversal of 2978177313 is 3137718792.

It is not a de Polignac number, because 2978177313 - 2² = 2978177309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2978177303) 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, 142620 + ... + 162162.

It is an arithmetic number, because the mean of its divisors is an integer number (251726720).

Almost surely, 2^2978177313 is an apocalyptic number.

It is an amenable number.

2978177313 is a deficient number, since it is larger than the sum of its proper divisors (1049450207).

2978177313 is a wasteful number, since it uses less digits than its factorization.

2978177313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20268.

The product of its digits is 444528, while the sum is 48.

The square root of 2978177313 is about 54572.6791810701. The cubic root of 2978177313 is about 1438.7439717914.

The spelling of 2978177313 in words is "two billion, nine hundred seventy-eight million, one hundred seventy-seven thousand, three hundred thirteen".