12781210758 has 8 divisors (see below), whose sum is σ = 25562421528. Its totient is φ = 4260403584.

The previous prime is 12781210721. The next prime is 12781210781. The reversal of 12781210758 is 85701218721.

It is a happy number.

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

12781210758 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065100891 + ... + 1065100902.

It is an arithmetic number, because the mean of its divisors is an integer number (3195302691).

Almost surely, 2^12781210758 is an apocalyptic number.

12781210758 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12781210758 is a wasteful number, since it uses less digits than its factorization.

12781210758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130201798.

The product of its (nonzero) digits is 62720, while the sum is 42.

The spelling of 12781210758 in words is "twelve billion, seven hundred eighty-one million, two hundred ten thousand, seven hundred fifty-eight".