135923367789 has 48 divisors (see below), whose sum is σ = 231772230144. Its totient is φ = 78796119600.

The previous prime is 135923367787. The next prime is 135923367821. The reversal of 135923367789 is 987763329531.

135923367789 is a `hidden beast` number, since 1 + 3 + 592 + 3 + 36 + 7 + 7 + 8 + 9 = 666.

It is not a de Polignac number, because 135923367789 - 2¹ = 135923367787 is a prime.

It is a super-2 number, since 2×135923367789² (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 (135923367781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1043967 + ... + 1166924.

It is an arithmetic number, because the mean of its divisors is an integer number (4828588128).

Almost surely, 2^135923367789 is an apocalyptic number.

It is an amenable number.

135923367789 is a deficient number, since it is larger than the sum of its proper divisors (95848862355).

135923367789 is a wasteful number, since it uses less digits than its factorization.

135923367789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210940 (or 2210928 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 63.

The spelling of 135923367789 in words is "one hundred thirty-five billion, nine hundred twenty-three million, three hundred sixty-seven thousand, seven hundred eighty-nine".