9977765432111 has 8 divisors (see below), whose sum is σ = 10247671570320. Its totient is φ = 9707871757248.

The previous prime is 9977765432099. The next prime is 9977765432113. The reversal of 9977765432111 is 1112345677799.

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 9977765432111 - 2³⁸ = 9702887525167 is a prime.

It is a super-3 number, since 3×9977765432111³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9977765432113) 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, 1481606 + ... + 4706451.

It is an arithmetic number, because the mean of its divisors is an integer number (1280958946290).

Almost surely, 2^{9977765432111} is an apocalyptic number.

9977765432111 is a deficient number, since it is larger than the sum of its proper divisors (269906138209).

9977765432111 is a wasteful number, since it uses less digits than its factorization.

9977765432111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6231673.

The product of its digits is 20003760, while the sum is 62.

The spelling of 9977765432111 in words is "nine trillion, nine hundred seventy-seven billion, seven hundred sixty-five million, four hundred thirty-two thousand, one hundred eleven".