3877795589991 has 4 divisors (see below), whose sum is σ = 5170394119992. Its totient is φ = 2585197059992.

The previous prime is 3877795589981. The next prime is 3877795589999. The reversal of 3877795589991 is 1999855977783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3877795589991 - 2⁵ = 3877795589959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3877795589898 and 3877795589907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3877795589999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646299264996 + ... + 646299265001.

It is an arithmetic number, because the mean of its divisors is an integer number (1292598529998).

Almost surely, 2^{3877795589991} is an apocalyptic number.

3877795589991 is a deficient number, since it is larger than the sum of its proper divisors (1292598530001).

3877795589991 is a wasteful number, since it uses less digits than its factorization.

3877795589991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292598530000.

The product of its digits is 10802030400, while the sum is 87.

The spelling of 3877795589991 in words is "three trillion, eight hundred seventy-seven billion, seven hundred ninety-five million, five hundred eighty-nine thousand, nine hundred ninety-one".