23702720642 has 8 divisors (see below), whose sum is σ = 35643639036. Its totient is φ = 11821507632.

The previous prime is 23702720581. The next prime is 23702720689. The reversal of 23702720642 is 24602720732.

It can be written as a sum of positive squares in 2 ways, for example, as 22464314161 + 1238406481 = 149881^2 + 35191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 14925353 + ... + 14926940.

Almost surely, 2^23702720642 is an apocalyptic number.

23702720642 is a deficient number, since it is larger than the sum of its proper divisors (11940918394).

23702720642 is a wasteful number, since it uses less digits than its factorization.

23702720642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29852692.

The product of its (nonzero) digits is 56448, while the sum is 35.

The spelling of 23702720642 in words is "twenty-three billion, seven hundred two million, seven hundred twenty thousand, six hundred forty-two".