7158943778551 has 2 divisors, whose sum is σ = 7158943778552. Its totient is φ = 7158943778550.

The previous prime is 7158943778543. The next prime is 7158943778627. The reversal of 7158943778551 is 1558773498517.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7158943778551 - 2³ = 7158943778543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7158913778551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3579471889275 + 3579471889276.

It is an arithmetic number, because the mean of its divisors is an integer number (3579471889276).

Almost surely, 2^{7158943778551} is an apocalyptic number.

7158943778551 is a deficient number, since it is larger than the sum of its proper divisors (1).

7158943778551 is an equidigital number, since it uses as much as digits as its factorization.

7158943778551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352000, while the sum is 70.

The spelling of 7158943778551 in words is "seven trillion, one hundred fifty-eight billion, nine hundred forty-three million, seven hundred seventy-eight thousand, five hundred fifty-one".