152943967942991 has 2 divisors, whose sum is σ = 152943967942992. Its totient is φ = 152943967942990.

The previous prime is 152943967942919. The next prime is 152943967943003. The reversal of 152943967942991 is 199249769349251.

It is a happy number.

Together with previous prime (152943967942919) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152943967942991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152943967948991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76471983971495 + 76471983971496.

It is an arithmetic number, because the mean of its divisors is an integer number (76471983971496).

Almost surely, 2^{152943967942991} is an apocalyptic number.

152943967942991 is a deficient number, since it is larger than the sum of its proper divisors (1).

152943967942991 is an equidigital number, since it uses as much as digits as its factorization.

152943967942991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2380855680, while the sum is 80.

The spelling of 152943967942991 in words is "one hundred fifty-two trillion, nine hundred forty-three billion, nine hundred sixty-seven million, nine hundred forty-two thousand, nine hundred ninety-one".