23445640645740 has 72 divisors (see below), whose sum is σ = 71124161956848. Its totient is φ = 6251668099200.

The previous prime is 23445640645729. The next prime is 23445640645789. The reversal of 23445640645740 is 4754604654432.

23445640645740 is a `hidden beast` number, since 2 + 3 + 4 + 4 + 5 + 6 + 4 + 0 + 64 + 574 + 0 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2989467 + ... + 7471826.

It is an arithmetic number, because the mean of its divisors is an integer number (987835582734).

Almost surely, 2^{23445640645740} is an apocalyptic number.

23445640645740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23445640645740 is an abundant number, since it is smaller than the sum of its proper divisors (47678521311108).

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

23445640645740 is a wasteful number, since it uses less digits than its factorization.

23445640645740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10473759 (or 10473754 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 54.

The spelling of 23445640645740 in words is "twenty-three trillion, four hundred forty-five billion, six hundred forty million, six hundred forty-five thousand, seven hundred forty".