1167976781149 has 2 divisors, whose sum is σ = 1167976781150. Its totient is φ = 1167976781148.

The previous prime is 1167976781141. The next prime is 1167976781183. The reversal of 1167976781149 is 9411876797611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1139808193924 + 28168587225 = 1067618^2 + 167835^2 .

It is a cyclic number.

It is not a de Polignac number, because 1167976781149 - 2³ = 1167976781141 is a prime.

It is a super-2 number, since 2×1167976781149² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1167976781141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583988390574 + 583988390575.

It is an arithmetic number, because the mean of its divisors is an integer number (583988390575).

Almost surely, 2^{1167976781149} is an apocalyptic number.

It is an amenable number.

1167976781149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1167976781149 is an equidigital number, since it uses as much as digits as its factorization.

1167976781149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32006016, while the sum is 67.

The spelling of 1167976781149 in words is "one trillion, one hundred sixty-seven billion, nine hundred seventy-six million, seven hundred eighty-one thousand, one hundred forty-nine".