23641351634 has 4 divisors (see below), whose sum is σ = 35462027454. Its totient is φ = 11820675816.

The previous prime is 23641351603. The next prime is 23641351639. The reversal of 23641351634 is 43615314632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14603997409 + 9037354225 = 120847^2 + 95065^2 .

It is not an unprimeable number, because it can be changed into a prime (23641351639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5910337907 + ... + 5910337910.

Almost surely, 2^23641351634 is an apocalyptic number.

23641351634 is a deficient number, since it is larger than the sum of its proper divisors (11820675820).

23641351634 is a wasteful number, since it uses less digits than its factorization.

23641351634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11820675819.

The product of its digits is 155520, while the sum is 38.

The spelling of 23641351634 in words is "twenty-three billion, six hundred forty-one million, three hundred fifty-one thousand, six hundred thirty-four".