2990661377 has 4 divisors (see below), whose sum is σ = 3262539696. Its totient is φ = 2718783060.

The previous prime is 2990661343. The next prime is 2990661431. The reversal of 2990661377 is 7731660992.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2990661377 - 2¹⁶ = 2990595841 is a prime.

It is a super-2 number, since 2×2990661377² = 17888110943759072258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2990661577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135939143 + ... + 135939164.

It is an arithmetic number, because the mean of its divisors is an integer number (815634924).

Almost surely, 2^2990661377 is an apocalyptic number.

It is an amenable number.

2990661377 is a deficient number, since it is larger than the sum of its proper divisors (271878319).

2990661377 is a wasteful number, since it uses less digits than its factorization.

2990661377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271878318.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 2990661377 is about 54686.9397297015. The cubic root of 2990661377 is about 1440.7515009066.

The spelling of 2990661377 in words is "two billion, nine hundred ninety million, six hundred sixty-one thousand, three hundred seventy-seven".