1150872456491 has 2 divisors, whose sum is σ = 1150872456492. Its totient is φ = 1150872456490.

The previous prime is 1150872456473. The next prime is 1150872456521. The reversal of 1150872456491 is 1946542780511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1150872456491 is a prime.

It is a super-2 number, since 2×1150872456491² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1150872476491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575436228245 + 575436228246.

It is an arithmetic number, because the mean of its divisors is an integer number (575436228246).

Almost surely, 2^{1150872456491} is an apocalyptic number.

1150872456491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150872456491 is an equidigital number, since it uses as much as digits as its factorization.

1150872456491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 1150872456491 in words is "one trillion, one hundred fifty billion, eight hundred seventy-two million, four hundred fifty-six thousand, four hundred ninety-one".