137893777623 has 24 divisors (see below), whose sum is σ = 237640072560. Its totient is φ = 78796443600.

The previous prime is 137893777601. The next prime is 137893777639. The reversal of 137893777623 is 326777398731.

It is a happy number.

It is not a de Polignac number, because 137893777623 - 2⁹ = 137893777111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137893777673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52112728 + ... + 52115373.

It is an arithmetic number, because the mean of its divisors is an integer number (9901669690).

Almost surely, 2^137893777623 is an apocalyptic number.

137893777623 is a deficient number, since it is larger than the sum of its proper divisors (99746294937).

137893777623 is a wasteful number, since it uses less digits than its factorization.

137893777623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104228124 (or 104228111 counting only the distinct ones).

The product of its digits is 56010528, while the sum is 63.

The spelling of 137893777623 in words is "one hundred thirty-seven billion, eight hundred ninety-three million, seven hundred seventy-seven thousand, six hundred twenty-three".