2977864822091 has 4 divisors (see below), whose sum is σ = 2978600283000. Its totient is φ = 2977129361184.

The previous prime is 2977864822069. The next prime is 2977864822123. The reversal of 2977864822091 is 1902284687792.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2977864822091 - 2¹⁸ = 2977864559947 is a prime.

It is a super-2 number, since 2×2977864822091² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2977854822091) 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, 367724381 + ... + 367732478.

It is an arithmetic number, because the mean of its divisors is an integer number (744650070750).

Almost surely, 2^{2977864822091} is an apocalyptic number.

2977864822091 is a deficient number, since it is larger than the sum of its proper divisors (735460909).

2977864822091 is an equidigital number, since it uses as much as digits as its factorization.

2977864822091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735460908.

The product of its (nonzero) digits is 48771072, while the sum is 65.

The spelling of 2977864822091 in words is "two trillion, nine hundred seventy-seven billion, eight hundred sixty-four million, eight hundred twenty-two thousand, ninety-one".