23859953906 has 4 divisors (see below), whose sum is σ = 35789930862. Its totient is φ = 11929976952.

The previous prime is 23859953891. The next prime is 23859953911. The reversal of 23859953906 is 60935995832.

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., 21362453281 + 2497500625 = 146159^2 + 49975^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5964988475 + ... + 5964988478.

Almost surely, 2^23859953906 is an apocalyptic number.

23859953906 is a deficient number, since it is larger than the sum of its proper divisors (11929976956).

23859953906 is a wasteful number, since it uses less digits than its factorization.

23859953906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11929976955.

The product of its (nonzero) digits is 15746400, while the sum is 59.

The spelling of 23859953906 in words is "twenty-three billion, eight hundred fifty-nine million, nine hundred fifty-three thousand, nine hundred six".