137233661388 has 12 divisors (see below), whose sum is σ = 320211876600. Its totient is φ = 45744553792.

The previous prime is 137233661387. The next prime is 137233661429. The reversal of 137233661388 is 883166332731.

It is a happy number.

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

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 137233661388.

It is not an unprimeable number, because it can be changed into a prime (137233661387) 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, 5718069213 + ... + 5718069236.

It is an arithmetic number, because the mean of its divisors is an integer number (26684323050).

Almost surely, 2^137233661388 is an apocalyptic number.

It is an amenable number.

137233661388 is an abundant number, since it is smaller than the sum of its proper divisors (182978215212).

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

137233661388 is a wasteful number, since it uses less digits than its factorization.

137233661388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11436138456 (or 11436138454 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 51.

The spelling of 137233661388 in words is "one hundred thirty-seven billion, two hundred thirty-three million, six hundred sixty-one thousand, three hundred eighty-eight".