11358828781 has 2 divisors, whose sum is σ = 11358828782. Its totient is φ = 11358828780.

The previous prime is 11358828763. The next prime is 11358828791. The reversal of 11358828781 is 18782885311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9830722500 + 1528106281 = 99150^2 + 39091^2 .

It is a cyclic number.

It is not a de Polignac number, because 11358828781 - 2¹⁵ = 11358796013 is a prime.

It is a super-2 number, since 2×11358828781² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11358828791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5679414390 + 5679414391.

It is an arithmetic number, because the mean of its divisors is an integer number (5679414391).

Almost surely, 2^11358828781 is an apocalyptic number.

It is an amenable number.

11358828781 is a deficient number, since it is larger than the sum of its proper divisors (1).

11358828781 is an equidigital number, since it uses as much as digits as its factorization.

11358828781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 860160, while the sum is 52.

The spelling of 11358828781 in words is "eleven billion, three hundred fifty-eight million, eight hundred twenty-eight thousand, seven hundred eighty-one".