2623423257 has 48 divisors (see below), whose sum is σ = 4733572480. Its totient is φ = 1363101696.

The previous prime is 2623423237. The next prime is 2623423261. The reversal of 2623423257 is 7523243262.

2623423257 is a `hidden beast` number, since 2 + 62 + 342 + 3 + 257 = 666.

It is not a de Polignac number, because 2623423257 - 2⁷ = 2623423129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2623423237) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30969 + ... + 78777.

Almost surely, 2^2623423257 is an apocalyptic number.

It is an amenable number.

2623423257 is a deficient number, since it is larger than the sum of its proper divisors (2110149223).

2623423257 is a wasteful number, since it uses less digits than its factorization.

2623423257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47902 (or 47899 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

The square root of 2623423257 is about 51219.3640823468. The cubic root of 2623423257 is about 1379.1858351328.

The spelling of 2623423257 in words is "two billion, six hundred twenty-three million, four hundred twenty-three thousand, two hundred fifty-seven".