116778631 has 2 divisors, whose sum is σ = 116778632. Its totient is φ = 116778630.

The previous prime is 116778589. The next prime is 116778647. The reversal of 116778631 is 136877611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 116778631 - 2¹³ = 116770439 is a prime.

It is a super-2 number, since 2×116778631² = 27274497316468322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116778671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58389315 + 58389316.

It is an arithmetic number, because the mean of its divisors is an integer number (58389316).

Almost surely, 2^116778631 is an apocalyptic number.

116778631 is a deficient number, since it is larger than the sum of its proper divisors (1).

116778631 is an equidigital number, since it uses as much as digits as its factorization.

116778631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 40.

The square root of 116778631 is about 10806.4161959458. The cubic root of 116778631 is about 488.7886655569.

The spelling of 116778631 in words is "one hundred sixteen million, seven hundred seventy-eight thousand, six hundred thirty-one".