6101440991 has 4 divisors (see below), whose sum is σ = 6158463912. Its totient is φ = 6044418072.

The previous prime is 6101440967. The next prime is 6101440997. The reversal of 6101440991 is 1990441016.

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 6101440991 - 2²⁶ = 6034332127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6101440997) 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, 28511300 + ... + 28511513.

It is an arithmetic number, because the mean of its divisors is an integer number (1539615978).

Almost surely, 2^6101440991 is an apocalyptic number.

6101440991 is a deficient number, since it is larger than the sum of its proper divisors (57022921).

6101440991 is a wasteful number, since it uses less digits than its factorization.

6101440991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57022920.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 6101440991 is about 78111.7212139126. The cubic root of 6101440991 is about 1827.3040010174.

The spelling of 6101440991 in words is "six billion, one hundred one million, four hundred forty thousand, nine hundred ninety-one".