863077784797 has 2 divisors, whose sum is σ = 863077784798. Its totient is φ = 863077784796.

The previous prime is 863077784791. The next prime is 863077784819. The reversal of 863077784797 is 797487770368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438050717316 + 425027067481 = 661854^2 + 651941^2 .

It is a cyclic number.

It is not a de Polignac number, because 863077784797 - 2¹⁵ = 863077752029 is a prime.

It is a super-2 number, since 2×863077784797² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863077784791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431538892398 + 431538892399.

It is an arithmetic number, because the mean of its divisors is an integer number (431538892399).

Almost surely, 2^863077784797 is an apocalyptic number.

It is an amenable number.

863077784797 is a deficient number, since it is larger than the sum of its proper divisors (1).

863077784797 is an equidigital number, since it uses as much as digits as its factorization.

863077784797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 697019904, while the sum is 73.

The spelling of 863077784797 in words is "eight hundred sixty-three billion, seventy-seven million, seven hundred eighty-four thousand, seven hundred ninety-seven".