12621320758 has 8 divisors (see below), whose sum is σ = 18993649752. Its totient is φ = 6290104176.

The previous prime is 12621320743. The next prime is 12621320843. The reversal of 12621320758 is 85702312621.

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

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, 10277335 + ... + 10278562.

It is an arithmetic number, because the mean of its divisors is an integer number (2374206219).

Almost surely, 2^12621320758 is an apocalyptic number.

12621320758 is a deficient number, since it is larger than the sum of its proper divisors (6372328994).

12621320758 is a wasteful number, since it uses less digits than its factorization.

12621320758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20556206.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 12621320758 in words is "twelve billion, six hundred twenty-one million, three hundred twenty thousand, seven hundred fifty-eight".