137881769423 has 8 divisors (see below), whose sum is σ = 146733543792. Its totient is φ = 129112337536.

The previous prime is 137881769413. The next prime is 137881769449. The reversal of 137881769423 is 324967188731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137881769423 is a prime.

It is a super-2 number, since 2×137881769423² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137881769413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20582165 + ... + 20588862.

It is an arithmetic number, because the mean of its divisors is an integer number (18341692974).

Almost surely, 2^137881769423 is an apocalyptic number.

137881769423 is a deficient number, since it is larger than the sum of its proper divisors (8851774369).

137881769423 is a wasteful number, since it uses less digits than its factorization.

137881769423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41171241.

The product of its digits is 12192768, while the sum is 59.

The spelling of 137881769423 in words is "one hundred thirty-seven billion, eight hundred eighty-one million, seven hundred sixty-nine thousand, four hundred twenty-three".