31445674328 has 8 divisors (see below), whose sum is σ = 58960639380. Its totient is φ = 15722837160.

The previous prime is 31445674307. The next prime is 31445674357. The reversal of 31445674328 is 82347654413.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1965354638 + ... + 1965354653.

Almost surely, 2^31445674328 is an apocalyptic number.

It is an amenable number.

31445674328 is a deficient number, since it is larger than the sum of its proper divisors (27514965052).

31445674328 is a wasteful number, since it uses less digits than its factorization.

31445674328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930709297 (or 3930709293 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 47.

The spelling of 31445674328 in words is "thirty-one billion, four hundred forty-five million, six hundred seventy-four thousand, three hundred twenty-eight".