10788394781 has 2 divisors, whose sum is σ = 10788394782. Its totient is φ = 10788394780.

The previous prime is 10788394681. The next prime is 10788394787. The reversal of 10788394781 is 18749388701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10283988100 + 504406681 = 101410^2 + 22459^2 .

It is a cyclic number.

It is not a de Polignac number, because 10788394781 - 2²² = 10784200477 is a prime.

It is a super-2 number, since 2×10788394781² (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 (10788394787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5394197390 + 5394197391.

It is an arithmetic number, because the mean of its divisors is an integer number (5394197391).

Almost surely, 2^10788394781 is an apocalyptic number.

It is an amenable number.

10788394781 is a deficient number, since it is larger than the sum of its proper divisors (1).

10788394781 is an equidigital number, since it uses as much as digits as its factorization.

10788394781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 56.

The spelling of 10788394781 in words is "ten billion, seven hundred eighty-eight million, three hundred ninety-four thousand, seven hundred eighty-one".