136678311125 has 36 divisors (see below), whose sum is σ = 174861021348. Its totient is φ = 106660915200.

The previous prime is 136678311113. The next prime is 136678311151. The reversal of 136678311125 is 521113876631.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 6 ways, for example, as 58774244356 + 77904066769 = 242434^2 + 279113^2 .

It is not a de Polignac number, because 136678311125 - 2⁴ = 136678311109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 177734741 + ... + 177735509.

It is an arithmetic number, because the mean of its divisors is an integer number (4857250593).

Almost surely, 2^136678311125 is an apocalyptic number.

It is an amenable number.

136678311125 is a deficient number, since it is larger than the sum of its proper divisors (38182710223).

136678311125 is an frugal number, since it uses more digits than its factorization.

136678311125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639 (or 817 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The spelling of 136678311125 in words is "one hundred thirty-six billion, six hundred seventy-eight million, three hundred eleven thousand, one hundred twenty-five".