136387907744 has 48 divisors (see below), whose sum is σ = 299736249120. Its totient is φ = 60552764160.

The previous prime is 136387907741. The next prime is 136387907749. The reversal of 136387907744 is 447709783631.

It is a happy number.

It is a super-2 number, since 2×136387907744² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136387907741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4490279 + ... + 4520550.

It is an arithmetic number, because the mean of its divisors is an integer number (6244505190).

Almost surely, 2^136387907744 is an apocalyptic number.

It is an amenable number.

136387907744 is an abundant number, since it is smaller than the sum of its proper divisors (163348341376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136387907744 is a wasteful number, since it uses less digits than its factorization.

136387907744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010893 (or 9010885 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 59.

The spelling of 136387907744 in words is "one hundred thirty-six billion, three hundred eighty-seven million, nine hundred seven thousand, seven hundred forty-four".