3147221456625 has 32 divisors (see below), whose sum is σ = 5255481898368. Its totient is φ = 1672586894400.

The previous prime is 3147221456563. The next prime is 3147221456641. The reversal of 3147221456625 is 5266541227413.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-3147221456625 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14721774 + ... + 14934023.

It is an arithmetic number, because the mean of its divisors is an integer number (164233809324).

Almost surely, 2^{3147221456625} is an apocalyptic number.

It is an amenable number.

3147221456625 is a deficient number, since it is larger than the sum of its proper divisors (2108260441743).

3147221456625 is a wasteful number, since it uses less digits than its factorization.

3147221456625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29656098 (or 29656088 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 48.

The spelling of 3147221456625 in words is "three trillion, one hundred forty-seven billion, two hundred twenty-one million, four hundred fifty-six thousand, six hundred twenty-five".