23690381630520 has 128 divisors (see below), whose sum is σ = 81612798048000. Its totient is φ = 5440853191680.

The previous prime is 23690381630479. The next prime is 23690381630549. The reversal of 23690381630520 is 2503618309632.

It is a super-2 number, since 2×23690381630520² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23690381630520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 472271205 + ... + 472321364.

It is an arithmetic number, because the mean of its divisors is an integer number (637599984750).

Almost surely, 2^{23690381630520} is an apocalyptic number.

23690381630520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23690381630520 is an abundant number, since it is smaller than the sum of its proper divisors (57922416417480).

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

23690381630520 is a wasteful number, since it uses less digits than its factorization.

23690381630520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944592613 (or 944592609 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 23690381630520 in words is "twenty-three trillion, six hundred ninety billion, three hundred eighty-one million, six hundred thirty thousand, five hundred twenty".