31771341612 has 24 divisors (see below), whose sum is σ = 82370145200. Its totient is φ = 10590447168.

The previous prime is 31771341601. The next prime is 31771341619. The reversal of 31771341612 is 21614317713.

It is a happy number.

31771341612 is a `hidden beast` number, since 3 + 1 + 7 + 7 + 1 + 34 + 1 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (31771341619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147089437 + ... + 147089652.

Almost surely, 2^31771341612 is an apocalyptic number.

It is an amenable number.

31771341612 is an abundant number, since it is smaller than the sum of its proper divisors (50598803588).

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

31771341612 is a wasteful number, since it uses less digits than its factorization.

31771341612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294179102 (or 294179094 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The spelling of 31771341612 in words is "thirty-one billion, seven hundred seventy-one million, three hundred forty-one thousand, six hundred twelve".