136877306220837 has 96 divisors (see below), whose sum is σ = 254336943357952. Its totient is φ = 71630520986304.

The previous prime is 136877306220779. The next prime is 136877306220859. The reversal of 136877306220837 is 738022603778631.

It is a happy number.

136877306220837 is a `hidden beast` number, since 1 + 3 + 6 + 8 + 77 + 306 + 220 + 8 + 37 = 666.

It is not a de Polignac number, because 136877306220837 - 2⁸ = 136877306220581 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136877306210837) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21561343 + ... + 27178044.

Almost surely, 2^{136877306220837} is an apocalyptic number.

It is an amenable number.

136877306220837 is a deficient number, since it is larger than the sum of its proper divisors (117459637137115).

136877306220837 is a wasteful number, since it uses less digits than its factorization.

136877306220837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48739549 (or 48739537 counting only the distinct ones).

The product of its (nonzero) digits is 85349376, while the sum is 63.

The spelling of 136877306220837 in words is "one hundred thirty-six trillion, eight hundred seventy-seven billion, three hundred six million, two hundred twenty thousand, eight hundred thirty-seven".