36138139125 has 128 divisors (see below), whose sum is σ = 67021074432. Its totient is φ = 17146080000.

The previous prime is 36138139033. The next prime is 36138139127. The reversal of 36138139125 is 52193183163.

It is not a de Polignac number, because 36138139125 - 2²¹ = 36136041973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36138139127) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 47738247 + ... + 47739003.

It is an arithmetic number, because the mean of its divisors is an integer number (523602144).

Almost surely, 2^36138139125 is an apocalyptic number.

It is an amenable number.

36138139125 is a deficient number, since it is larger than the sum of its proper divisors (30882935307).

36138139125 is a wasteful number, since it uses less digits than its factorization.

36138139125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020 (or 1010 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The spelling of 36138139125 in words is "thirty-six billion, one hundred thirty-eight million, one hundred thirty-nine thousand, one hundred twenty-five".