136378701867 has 4 divisors (see below), whose sum is σ = 181838269160. Its totient is φ = 90919134576.

The previous prime is 136378701863. The next prime is 136378701881. The reversal of 136378701867 is 768107873631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 136378701867 - 2² = 136378701863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136378701863) 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, 22729783642 + ... + 22729783647.

It is an arithmetic number, because the mean of its divisors is an integer number (45459567290).

Almost surely, 2^136378701867 is an apocalyptic number.

136378701867 is a deficient number, since it is larger than the sum of its proper divisors (45459567293).

136378701867 is an equidigital number, since it uses as much as digits as its factorization.

136378701867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45459567292.

The product of its (nonzero) digits is 7112448, while the sum is 57.

The spelling of 136378701867 in words is "one hundred thirty-six billion, three hundred seventy-eight million, seven hundred one thousand, eight hundred sixty-seven".