137797443789 has 4 divisors (see below), whose sum is σ = 183729925056. Its totient is φ = 91864962524.

The previous prime is 137797443733. The next prime is 137797443821. The reversal of 137797443789 is 987344797731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 137797443789 - 2¹³ = 137797435597 is a prime.

It is a super-2 number, since 2×137797443789² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137797444789) 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, 22966240629 + ... + 22966240634.

It is an arithmetic number, because the mean of its divisors is an integer number (45932481264).

Almost surely, 2^137797443789 is an apocalyptic number.

It is an amenable number.

137797443789 is a deficient number, since it is larger than the sum of its proper divisors (45932481267).

137797443789 is an equidigital number, since it uses as much as digits as its factorization.

137797443789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45932481266.

The product of its digits is 224042112, while the sum is 69.

The spelling of 137797443789 in words is "one hundred thirty-seven billion, seven hundred ninety-seven million, four hundred forty-three thousand, seven hundred eighty-nine".