10771976981 has 8 divisors (see below), whose sum is σ = 11203153920. Its totient is φ = 10348170768.

The previous prime is 10771976923. The next prime is 10771977023. The reversal of 10771976981 is 18967917701.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10771976981 is a prime.

It is a super-2 number, since 2×10771976981² (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 (10771976911) 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, 1839701 + ... + 1845546.

It is an arithmetic number, because the mean of its divisors is an integer number (1400394240).

Almost surely, 2^10771976981 is an apocalyptic number.

It is an amenable number.

10771976981 is a deficient number, since it is larger than the sum of its proper divisors (431176939).

10771976981 is an equidigital number, since it uses as much as digits as its factorization.

10771976981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685363.

The product of its (nonzero) digits is 1333584, while the sum is 56.

The spelling of 10771976981 in words is "ten billion, seven hundred seventy-one million, nine hundred seventy-six thousand, nine hundred eighty-one".