131284787392 has 56 divisors (see below), whose sum is σ = 289018797120. Its totient is φ = 58663445760.

The previous prime is 131284787383. The next prime is 131284787393. The reversal of 131284787392 is 293787482131.

It is not an unprimeable number, because it can be changed into a prime (131284787393) 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, 1538838 + ... + 1621909.

Almost surely, 2^131284787392 is an apocalyptic number.

It is an amenable number.

131284787392 is an abundant number, since it is smaller than the sum of its proper divisors (157734009728).

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

131284787392 is a wasteful number, since it uses less digits than its factorization.

131284787392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160829 (or 3160819 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 55.

The spelling of 131284787392 in words is "one hundred thirty-one billion, two hundred eighty-four million, seven hundred eighty-seven thousand, three hundred ninety-two".