2772137923 has 2 divisors, whose sum is σ = 2772137924. Its totient is φ = 2772137922.

The previous prime is 2772137891. The next prime is 2772137971. The reversal of 2772137923 is 3297312772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2772137923 - 2⁵ = 2772137891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2772137923.

It is not a weakly prime, because it can be changed into another prime (2772137993) by changing a digit.

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 as a sum of consecutive naturals, namely, 1386068961 + 1386068962.

It is an arithmetic number, because the mean of its divisors is an integer number (1386068962).

Almost surely, 2^2772137923 is an apocalyptic number.

2772137923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2772137923 is an equidigital number, since it uses as much as digits as its factorization.

2772137923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 43.

The square root of 2772137923 is about 52651.0961234427. The cubic root of 2772137923 is about 1404.7690966906.

The spelling of 2772137923 in words is "two billion, seven hundred seventy-two million, one hundred thirty-seven thousand, nine hundred twenty-three".