131933616639 has 16 divisors (see below), whose sum is σ = 191912644224. Its totient is φ = 79955933600.

The previous prime is 131933616611. The next prime is 131933616667. The reversal of 131933616639 is 936616339131.

It is an interprime number because it is at equal distance from previous prime (131933616611) and next prime (131933616667).

It is a cyclic number.

It is not a de Polignac number, because 131933616639 - 2¹¹ = 131933614591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131933616591 and 131933616600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131933616679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701884 + ... + 869774.

It is an arithmetic number, because the mean of its divisors is an integer number (11994540264).

Almost surely, 2^131933616639 is an apocalyptic number.

131933616639 is a deficient number, since it is larger than the sum of its proper divisors (59979027585).

131933616639 is a wasteful number, since it uses less digits than its factorization.

131933616639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191718.

The product of its digits is 1417176, while the sum is 51.

The spelling of 131933616639 in words is "one hundred thirty-one billion, nine hundred thirty-three million, six hundred sixteen thousand, six hundred thirty-nine".