10155777391 has 2 divisors, whose sum is σ = 10155777392. Its totient is φ = 10155777390.

The previous prime is 10155777383. The next prime is 10155777431. The reversal of 10155777391 is 19377755101.

It is a weak prime.

It is an emirp because it is prime and its reverse (19377755101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10155777391 - 2³ = 10155777383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10155777341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5077888695 + 5077888696.

It is an arithmetic number, because the mean of its divisors is an integer number (5077888696).

Almost surely, 2^10155777391 is an apocalyptic number.

10155777391 is a deficient number, since it is larger than the sum of its proper divisors (1).

10155777391 is an equidigital number, since it uses as much as digits as its factorization.

10155777391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 231525, while the sum is 46.

The spelling of 10155777391 in words is "ten billion, one hundred fifty-five million, seven hundred seventy-seven thousand, three hundred ninety-one".