2977889993886 has 8 divisors (see below), whose sum is σ = 5955779987784. Its totient is φ = 992629997960.

The previous prime is 2977889993867. The next prime is 2977889993893. The reversal of 2977889993886 is 6883999887792.

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

2977889993886 is an admirable number.

It is a super-2 number, since 2×2977889993886² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2977889993886.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248157499485 + ... + 248157499496.

It is an arithmetic number, because the mean of its divisors is an integer number (744472498473).

Almost surely, 2^{2977889993886} is an apocalyptic number.

2977889993886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2977889993886 is a wasteful number, since it uses less digits than its factorization.

2977889993886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496314998986.

The product of its digits is 47405481984, while the sum is 93.

The spelling of 2977889993886 in words is "two trillion, nine hundred seventy-seven billion, eight hundred eighty-nine million, nine hundred ninety-three thousand, eight hundred eighty-six".