12500356386 has 72 divisors (see below), whose sum is σ = 30693939120. Its totient is φ = 3383526384.

The previous prime is 12500356369. The next prime is 12500356403. The reversal of 12500356386 is 68365300521.

It is an interprime number because it is at equal distance from previous prime (12500356369) and next prime (12500356403).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 47245 + ... + 165023.

It is an arithmetic number, because the mean of its divisors is an integer number (426304710).

Almost surely, 2^12500356386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12500356386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15346969560).

12500356386 is an abundant number, since it is smaller than the sum of its proper divisors (18193582734).

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

12500356386 is a wasteful number, since it uses less digits than its factorization.

12500356386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117836 (or 117810 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 12500356386 in words is "twelve billion, five hundred million, three hundred fifty-six thousand, three hundred eighty-six".