1169267937991 has 8 divisors (see below), whose sum is σ = 1230853812480. Its totient is φ = 1107686609208.

The previous prime is 1169267937941. The next prime is 1169267938037. The reversal of 1169267937991 is 1997397629611.

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 1169267937991 - 2⁷ = 1169267937863 is a prime.

It is a super-2 number, since 2×1169267937991² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1169267937991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1169267937941) 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, 601981 + ... + 1643446.

It is an arithmetic number, because the mean of its divisors is an integer number (153856726560).

Almost surely, 2^{1169267937991} is an apocalyptic number.

1169267937991 is a deficient number, since it is larger than the sum of its proper divisors (61585874489).

1169267937991 is a wasteful number, since it uses less digits than its factorization.

1169267937991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272853.

The product of its digits is 69441624, while the sum is 70.

The spelling of 1169267937991 in words is "one trillion, one hundred sixty-nine billion, two hundred sixty-seven million, nine hundred thirty-seven thousand, nine hundred ninety-one".