10861102991 has 8 divisors (see below), whose sum is σ = 11484912768. Its totient is φ = 10254384000.

The previous prime is 10861102961. The next prime is 10861103017. The reversal of 10861102991 is 19920116801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10861102991 - 2²² = 10856908687 is a prime.

It is a super-2 number, since 2×10861102991² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10861102961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4271390 + ... + 4273931.

It is an arithmetic number, because the mean of its divisors is an integer number (1435614096).

Almost surely, 2^10861102991 is an apocalyptic number.

10861102991 is a deficient number, since it is larger than the sum of its proper divisors (623809777).

10861102991 is an equidigital number, since it uses as much as digits as its factorization.

10861102991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8545393.

The product of its (nonzero) digits is 7776, while the sum is 38.

The spelling of 10861102991 in words is "ten billion, eight hundred sixty-one million, one hundred two thousand, nine hundred ninety-one".