8100423457 has 4 divisors (see below), whose sum is σ = 9257626816. Its totient is φ = 6943220100.

The previous prime is 8100423437. The next prime is 8100423479. The reversal of 8100423457 is 7543240018.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7543240018 = 2 ⋅3771620009.

It is a cyclic number.

It is not a de Polignac number, because 8100423457 - 2⁷ = 8100423329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8100423437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578601669 + ... + 578601682.

It is an arithmetic number, because the mean of its divisors is an integer number (2314406704).

Almost surely, 2^8100423457 is an apocalyptic number.

It is an amenable number.

8100423457 is a deficient number, since it is larger than the sum of its proper divisors (1157203359).

8100423457 is a wasteful number, since it uses less digits than its factorization.

8100423457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157203358.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 8100423457 is about 90002.3525081428. The cubic root of 8100423457 is about 2008.3338466822. Note that the first 3 decimals are identical.

The spelling of 8100423457 in words is "eight billion, one hundred million, four hundred twenty-three thousand, four hundred fifty-seven".