23217790002 has 24 divisors (see below), whose sum is σ = 51040763088. Its totient is φ = 7035693720.

The previous prime is 23217789983. The next prime is 23217790007. The reversal of 23217790002 is 20009771232.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (23217790007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15989488 + ... + 15990939.

It is an arithmetic number, because the mean of its divisors is an integer number (2126698462).

Almost surely, 2^23217790002 is an apocalyptic number.

23217790002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23217790002 is an abundant number, since it is smaller than the sum of its proper divisors (27822973086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23217790002 is a wasteful number, since it uses less digits than its factorization.

23217790002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31980454 (or 31980443 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The spelling of 23217790002 in words is "twenty-three billion, two hundred seventeen million, seven hundred ninety thousand, two".