90861814723 has 8 divisors (see below), whose sum is σ = 92127859200. Its totient is φ = 89603152968.

The previous prime is 90861814717. The next prime is 90861814753. The reversal of 90861814723 is 32741816809.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90861814723 - 2²⁵ = 90828260291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90861814753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1820893 + ... + 1870126.

It is an arithmetic number, because the mean of its divisors is an integer number (11515982400).

Almost surely, 2^90861814723 is an apocalyptic number.

90861814723 is a deficient number, since it is larger than the sum of its proper divisors (1266044477).

90861814723 is a wasteful number, since it uses less digits than its factorization.

90861814723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691361.

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 90861814723 in words is "ninety billion, eight hundred sixty-one million, eight hundred fourteen thousand, seven hundred twenty-three".