31421476725 has 12 divisors (see below), whose sum is σ = 51950174976. Its totient is φ = 16758120880.

The previous prime is 31421476711. The next prime is 31421476733. The reversal of 31421476725 is 52767412413.

It is not a de Polignac number, because 31421476725 - 2¹¹ = 31421474677 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209476437 + ... + 209476586.

It is an arithmetic number, because the mean of its divisors is an integer number (4329181248).

Almost surely, 2^31421476725 is an apocalyptic number.

It is an amenable number.

31421476725 is a deficient number, since it is larger than the sum of its proper divisors (20528698251).

31421476725 is a wasteful number, since it uses less digits than its factorization.

31421476725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418953036 (or 418953031 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The spelling of 31421476725 in words is "thirty-one billion, four hundred twenty-one million, four hundred seventy-six thousand, seven hundred twenty-five".