137444047077738 has 64 divisors (see below), whose sum is σ = 282799783584000. Its totient is φ = 44500315507200.

The previous prime is 137444047077737. The next prime is 137444047077751. The reversal of 137444047077738 is 837770740444731.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (137444047077737) 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, 1224400638 + ... + 1224512886.

It is an arithmetic number, because the mean of its divisors is an integer number (4418746618500).

Almost surely, 2^{137444047077738} is an apocalyptic number.

137444047077738 is an abundant number, since it is smaller than the sum of its proper divisors (145355736506262).

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

137444047077738 is a wasteful number, since it uses less digits than its factorization.

137444047077738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121663.

The product of its (nonzero) digits is 309786624, while the sum is 66.

The spelling of 137444047077738 in words is "one hundred thirty-seven trillion, four hundred forty-four billion, forty-seven million, seventy-seven thousand, seven hundred thirty-eight".