2776820157 has 16 divisors (see below), whose sum is σ = 4153751680. Its totient is φ = 1833238656.

The previous prime is 2776820119. The next prime is 2776820177. The reversal of 2776820157 is 7510286772.

It is not a de Polignac number, because 2776820157 - 2¹⁶ = 2776754621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2776820177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496468 + ... + 502029.

It is an arithmetic number, because the mean of its divisors is an integer number (259609480).

Almost surely, 2^2776820157 is an apocalyptic number.

2776820157 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2776820157 is a deficient number, since it is larger than the sum of its proper divisors (1376931523).

2776820157 is a wasteful number, since it uses less digits than its factorization.

2776820157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998609 (or 998603 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The square root of 2776820157 is about 52695.5420979802. The cubic root of 2776820157 is about 1405.5595525407.

The spelling of 2776820157 in words is "two billion, seven hundred seventy-six million, eight hundred twenty thousand, one hundred fifty-seven".