136538381312 has 22 divisors (see below), whose sum is σ = 272943426408. Its totient is φ = 68269190144.

The previous prime is 136538381293. The next prime is 136538381387. The reversal of 136538381312 is 213183835631.

It is a super-2 number, since 2×136538381312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66668108 + ... + 66670155.

Almost surely, 2^136538381312 is an apocalyptic number.

It is an amenable number.

136538381312 is a deficient number, since it is larger than the sum of its proper divisors (136405045096).

136538381312 is an equidigital number, since it uses as much as digits as its factorization.

136538381312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133338283 (or 133338265 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The spelling of 136538381312 in words is "one hundred thirty-six billion, five hundred thirty-eight million, three hundred eighty-one thousand, three hundred twelve".