23290189497 has 32 divisors (see below), whose sum is σ = 35452066560. Its totient is φ = 15100525440.

The previous prime is 23290189477. The next prime is 23290189511. The reversal of 23290189497 is 79498109232.

It is not a de Polignac number, because 23290189497 - 2²³ = 23281800889 is a prime.

It is a super-2 number, since 2×23290189497² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23290189477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3426172 + ... + 3432962.

It is an arithmetic number, because the mean of its divisors is an integer number (1107877080).

Almost surely, 2^23290189497 is an apocalyptic number.

23290189497 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

23290189497 is a deficient number, since it is larger than the sum of its proper divisors (12161877063).

23290189497 is a wasteful number, since it uses less digits than its factorization.

23290189497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10270 (or 10264 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 23290189497 in words is "twenty-three billion, two hundred ninety million, one hundred eighty-nine thousand, four hundred ninety-seven".