136729704787 has 8 divisors (see below), whose sum is σ = 155908984896. Its totient is φ = 118787797632.

The previous prime is 136729704763. The next prime is 136729704791. The reversal of 136729704787 is 787407927631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136729704787 is a prime.

It is a super-2 number, since 2×136729704787² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136729704707) 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, 309343003 + ... + 309343444.

It is an arithmetic number, because the mean of its divisors is an integer number (19488623112).

Almost surely, 2^136729704787 is an apocalyptic number.

136729704787 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

136729704787 is a deficient number, since it is larger than the sum of its proper divisors (19179280109).

136729704787 is a wasteful number, since it uses less digits than its factorization.

136729704787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618686477.

The product of its (nonzero) digits is 24893568, while the sum is 61.

The spelling of 136729704787 in words is "one hundred thirty-six billion, seven hundred twenty-nine million, seven hundred four thousand, seven hundred eighty-seven".