2136751753878 has 96 divisors (see below), whose sum is σ = 5404436084736. Its totient is φ = 597416347584.

The previous prime is 2136751753853. The next prime is 2136751753901. The reversal of 2136751753878 is 8783571576312.

2136751753878 is a `hidden beast` number, since 2 + 1 + 3 + 67 + 517 + 53 + 8 + 7 + 8 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42690375 + ... + 42740397.

It is an arithmetic number, because the mean of its divisors is an integer number (56296209216).

Almost surely, 2^{2136751753878} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2136751753878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2702218042368).

2136751753878 is an abundant number, since it is smaller than the sum of its proper divisors (3267684330858).

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

2136751753878 is a wasteful number, since it uses less digits than its factorization.

2136751753878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57298 (or 57295 counting only the distinct ones).

The product of its digits is 59270400, while the sum is 63.

The spelling of 2136751753878 in words is "two trillion, one hundred thirty-six billion, seven hundred fifty-one million, seven hundred fifty-three thousand, eight hundred seventy-eight".