23695809870 has 16 divisors (see below), whose sum is σ = 56869943760. Its totient is φ = 6318882624.

The previous prime is 23695809817. The next prime is 23695809877. The reversal of 23695809870 is 7890859632.

It is a super-2 number, since 2×23695809870² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23695809870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23695809877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394930135 + ... + 394930194.

It is an arithmetic number, because the mean of its divisors is an integer number (3554371485).

Almost surely, 2^23695809870 is an apocalyptic number.

23695809870 is an abundant number, since it is smaller than the sum of its proper divisors (33174133890).

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

23695809870 is a wasteful number, since it uses less digits than its factorization.

23695809870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789860339.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 23695809870 in words is "twenty-three billion, six hundred ninety-five million, eight hundred nine thousand, eight hundred seventy".