31445673425 has 6 divisors (see below), whose sum is σ = 38992635078. Its totient is φ = 25156538720.

The previous prime is 31445673419. The next prime is 31445673451. The reversal of 31445673425 is 52437654413.

It can be written as a sum of positive squares in 3 ways, for example, as 444324241 + 31001349184 = 21079^2 + 176072^2 .

It is not a de Polignac number, because 31445673425 - 2¹⁴ = 31445657041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 628913444 + ... + 628913493.

It is an arithmetic number, because the mean of its divisors is an integer number (6498772513).

Almost surely, 2^31445673425 is an apocalyptic number.

It is an amenable number.

31445673425 is a deficient number, since it is larger than the sum of its proper divisors (7546961653).

31445673425 is a wasteful number, since it uses less digits than its factorization.

31445673425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257826947 (or 1257826942 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 44.

The spelling of 31445673425 in words is "thirty-one billion, four hundred forty-five million, six hundred seventy-three thousand, four hundred twenty-five".