31424971284 has 36 divisors (see below), whose sum is σ = 90783251104. Its totient is φ = 8978563152.

The previous prime is 31424971273. The next prime is 31424971351. The reversal of 31424971284 is 48217942413.

31424971284 is a `hidden beast` number, since 3 + 142 + 497 + 12 + 8 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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, 62350882 + ... + 62351385.

Almost surely, 2^31424971284 is an apocalyptic number.

It is an amenable number.

31424971284 is an abundant number, since it is smaller than the sum of its proper divisors (59358279820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31424971284 is a wasteful number, since it uses less digits than its factorization.

31424971284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124702284 (or 124702279 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The spelling of 31424971284 in words is "thirty-one billion, four hundred twenty-four million, nine hundred seventy-one thousand, two hundred eighty-four".