2811657423 has 16 divisors (see below), whose sum is σ = 3803466240. Its totient is φ = 1847306496.

The previous prime is 2811657361. The next prime is 2811657467. The reversal of 2811657423 is 3247561182.

It is not a de Polignac number, because 2811657423 - 2¹³ = 2811649231 is a prime.

It is a super-2 number, since 2×2811657423² = 15810834928622001858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2811657223) 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, 49336 + ... + 89762.

It is an arithmetic number, because the mean of its divisors is an integer number (237716640).

Almost surely, 2^2811657423 is an apocalyptic number.

2811657423 is a deficient number, since it is larger than the sum of its proper divisors (991808817).

2811657423 is a wasteful number, since it uses less digits than its factorization.

2811657423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40766.

The product of its digits is 80640, while the sum is 39.

The square root of 2811657423 is about 53025.0641018000. The cubic root of 2811657423 is about 1411.4130700759.

The spelling of 2811657423 in words is "two billion, eight hundred eleven million, six hundred fifty-seven thousand, four hundred twenty-three".