137973732936 has 128 divisors (see below), whose sum is σ = 373729171200. Its totient is φ = 42195686400.

The previous prime is 137973732881. The next prime is 137973732937. The reversal of 137973732936 is 639237379731.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 137973732936.

It is not an unprimeable number, because it can be changed into a prime (137973732937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54084861 + ... + 54087411.

It is an arithmetic number, because the mean of its divisors is an integer number (2919759150).

Almost surely, 2^137973732936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137973732936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186864585600).

137973732936 is an abundant number, since it is smaller than the sum of its proper divisors (235755438264).

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

137973732936 is a wasteful number, since it uses less digits than its factorization.

137973732936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559 (or 3555 counting only the distinct ones).

The product of its digits is 27005076, while the sum is 60.

The spelling of 137973732936 in words is "one hundred thirty-seven billion, nine hundred seventy-three million, seven hundred thirty-two thousand, nine hundred thirty-six".