90830870869 has 4 divisors (see below), whose sum is σ = 95611443040. Its totient is φ = 86050298700.

The previous prime is 90830870849. The next prime is 90830870873. The reversal of 90830870869 is 96807803809.

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.

It is a cyclic number.

It is not a de Polignac number, because 90830870869 - 2⁹ = 90830870357 is a prime.

It is a super-2 number, since 2×90830870869² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90830870849) 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, 2390286057 + ... + 2390286094.

It is an arithmetic number, because the mean of its divisors is an integer number (23902860760).

Almost surely, 2^90830870869 is an apocalyptic number.

It is an amenable number.

90830870869 is a deficient number, since it is larger than the sum of its proper divisors (4780572171).

90830870869 is a wasteful number, since it uses less digits than its factorization.

90830870869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780572170.

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 90830870869 in words is "ninety billion, eight hundred thirty million, eight hundred seventy thousand, eight hundred sixty-nine".