136862780346 has 24 divisors (see below), whose sum is σ = 296603270964. Its totient is φ = 45610581120.

The previous prime is 136862780323. The next prime is 136862780381. The reversal of 136862780346 is 643087268631.

136862780346 is a `hidden beast` number, since 1 + 3 + 6 + 8 + 627 + 8 + 0 + 3 + 4 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 128873102121 + 7989678225 = 358989^2 + 89385^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 136862780292 and 136862780301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 780351 + ... + 939506.

Almost surely, 2^136862780346 is an apocalyptic number.

136862780346 is an abundant number, since it is smaller than the sum of its proper divisors (159740490618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136862780346 is a wasteful number, since it uses less digits than its factorization.

136862780346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724286 (or 1724283 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 136862780346 in words is "one hundred thirty-six billion, eight hundred sixty-two million, seven hundred eighty thousand, three hundred forty-six".