911457557551 has 2 divisors, whose sum is σ = 911457557552. Its totient is φ = 911457557550.

The previous prime is 911457557539. The next prime is 911457557597. The reversal of 911457557551 is 155755754119.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 911457557551 - 2¹⁷ = 911457426479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 911457557492 and 911457557501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (911457557251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455728778775 + 455728778776.

It is an arithmetic number, because the mean of its divisors is an integer number (455728778776).

Almost surely, 2^911457557551 is an apocalyptic number.

911457557551 is a deficient number, since it is larger than the sum of its proper divisors (1).

911457557551 is an equidigital number, since it uses as much as digits as its factorization.

911457557551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5512500, while the sum is 55.

The spelling of 911457557551 in words is "nine hundred eleven billion, four hundred fifty-seven million, five hundred fifty-seven thousand, five hundred fifty-one".