23690642388 has 48 divisors (see below), whose sum is σ = 63205169664. Its totient is φ = 6765527520.

The previous prime is 23690642369. The next prime is 23690642399. The reversal of 23690642388 is 88324609632.

It is a super-2 number, since 2×23690642388² (a number of 22 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 23690642388.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112831 + ... + 245177.

It is an arithmetic number, because the mean of its divisors is an integer number (1316774368).

Almost surely, 2^23690642388 is an apocalyptic number.

23690642388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23690642388 is an abundant number, since it is smaller than the sum of its proper divisors (39514527276).

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

23690642388 is a wasteful number, since it uses less digits than its factorization.

23690642388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134492 (or 134490 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 23690642388 in words is "twenty-three billion, six hundred ninety million, six hundred forty-two thousand, three hundred eighty-eight".