2772423157 has 16 divisors (see below), whose sum is σ = 3300796800. Its totient is φ = 2279093760.

The previous prime is 2772423149. The next prime is 2772423167. The reversal of 2772423157 is 7513242772.

It is a cyclic number.

It is not a de Polignac number, because 2772423157 - 2³ = 2772423149 is a prime.

It is a super-2 number, since 2×2772423157² = 15372660322939693298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772423167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64932 + ... + 98797.

It is an arithmetic number, because the mean of its divisors is an integer number (206299800).

Almost surely, 2^2772423157 is an apocalyptic number.

It is an amenable number.

2772423157 is a deficient number, since it is larger than the sum of its proper divisors (528373643).

2772423157 is a wasteful number, since it uses less digits than its factorization.

2772423157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163836.

The product of its digits is 164640, while the sum is 40.

The square root of 2772423157 is about 52653.8047723049. The cubic root of 2772423157 is about 1404.8172754101.

The spelling of 2772423157 in words is "two billion, seven hundred seventy-two million, four hundred twenty-three thousand, one hundred fifty-seven".