136780967837 has 4 divisors (see below), whose sum is σ = 136806158496. Its totient is φ = 136755777180.

The previous prime is 136780967809. The next prime is 136780967849. The reversal of 136780967837 is 738769087631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136780967837 - 2²² = 136776773533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136780967867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12587183 + ... + 12598044.

It is an arithmetic number, because the mean of its divisors is an integer number (34201539624).

Almost surely, 2^136780967837 is an apocalyptic number.

It is an amenable number.

136780967837 is a deficient number, since it is larger than the sum of its proper divisors (25190659).

136780967837 is an equidigital number, since it uses as much as digits as its factorization.

136780967837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25190658.

The product of its (nonzero) digits is 64012032, while the sum is 65.

The spelling of 136780967837 in words is "one hundred thirty-six billion, seven hundred eighty million, nine hundred sixty-seven thousand, eight hundred thirty-seven".