137989747896 has 768 divisors, whose sum is σ = 485720064000. Its totient is φ = 32361638400.

The previous prime is 137989747867. The next prime is 137989747927. The reversal of 137989747896 is 698747989731.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1086533385 + ... + 1086533511.

It is an arithmetic number, because the mean of its divisors is an integer number (632448000).

Almost surely, 2^137989747896 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 137989747896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242860032000).

137989747896 is an abundant number, since it is smaller than the sum of its proper divisors (347730316104).

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

137989747896 is a wasteful number, since it uses less digits than its factorization.

137989747896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 234 counting only the distinct ones).

The product of its digits is 1152216576, while the sum is 78.

The spelling of 137989747896 in words is "one hundred thirty-seven billion, nine hundred eighty-nine million, seven hundred forty-seven thousand, eight hundred ninety-six".