77834657032135 has 16 divisors (see below), whose sum is σ = 94326878143872. Its totient is φ = 61650872640000.

The previous prime is 77834657031877. The next prime is 77834657032259. The reversal of 77834657032135 is 53123075643877.

It is not a de Polignac number, because 77834657032135 - 2¹¹ = 77834657030087 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 131270335 + ... + 131861935.

It is an arithmetic number, because the mean of its divisors is an integer number (5895429883992).

Almost surely, 2^{77834657032135} is an apocalyptic number.

77834657032135 is a deficient number, since it is larger than the sum of its proper divisors (16492221111737).

77834657032135 is a wasteful number, since it uses less digits than its factorization.

77834657032135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852234.

The product of its (nonzero) digits is 88905600, while the sum is 61.

The spelling of 77834657032135 in words is "seventy-seven trillion, eight hundred thirty-four billion, six hundred fifty-seven million, thirty-two thousand, one hundred thirty-five".