31361196156 has 12 divisors (see below), whose sum is σ = 73176124392. Its totient is φ = 10453732048.

The previous prime is 31361196151. The next prime is 31361196173. The reversal of 31361196156 is 65169116313.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31361196151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1306716495 + ... + 1306716518.

It is an arithmetic number, because the mean of its divisors is an integer number (6098010366).

Almost surely, 2^31361196156 is an apocalyptic number.

It is an amenable number.

31361196156 is an abundant number, since it is smaller than the sum of its proper divisors (41814928236).

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

31361196156 is a wasteful number, since it uses less digits than its factorization.

31361196156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613433020 (or 2613433018 counting only the distinct ones).

The product of its digits is 87480, while the sum is 42.

The spelling of 31361196156 in words is "thirty-one billion, three hundred sixty-one million, one hundred ninety-six thousand, one hundred fifty-six".