136402143176858 has 32 divisors (see below), whose sum is σ = 225178136198400. Its totient is φ = 61587682243776.

The previous prime is 136402143176839. The next prime is 136402143176867. The reversal of 136402143176858 is 858671341204631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 136402143176797 and 136402143176806.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304400216 + ... + 304847987.

It is an arithmetic number, because the mean of its divisors is an integer number (7036816756200).

Almost surely, 2^{136402143176858} is an apocalyptic number.

136402143176858 is a deficient number, since it is larger than the sum of its proper divisors (88775993021542).

136402143176858 is a wasteful number, since it uses less digits than its factorization.

136402143176858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609248406.

The product of its (nonzero) digits is 23224320, while the sum is 59.

The spelling of 136402143176858 in words is "one hundred thirty-six trillion, four hundred two billion, one hundred forty-three million, one hundred seventy-six thousand, eight hundred fifty-eight".