2891986542936 has 48 divisors (see below), whose sum is σ = 7832547342360. Its totient is φ = 963985201920.

The previous prime is 2891986542901. The next prime is 2891986542959. The reversal of 2891986542936 is 6392456891982.

2891986542936 is a `hidden beast` number, since 2 + 8 + 9 + 198 + 6 + 5 + 429 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9749776 + ... + 10042016.

Almost surely, 2^{2891986542936} is an apocalyptic number.

It is an amenable number.

2891986542936 is an abundant number, since it is smaller than the sum of its proper divisors (4940560799424).

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

2891986542936 is a wasteful number, since it uses less digits than its factorization.

2891986542936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429696 (or 429689 counting only the distinct ones).

The product of its digits is 403107840, while the sum is 72.

The spelling of 2891986542936 in words is "two trillion, eight hundred ninety-one billion, nine hundred eighty-six million, five hundred forty-two thousand, nine hundred thirty-six".