1020769663 has 2 divisors, whose sum is σ = 1020769664. Its totient is φ = 1020769662.

The previous prime is 1020769657. The next prime is 1020769667. The reversal of 1020769663 is 3669670201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020769663 - 2²⁵ = 987215231 is a prime.

It is a super-2 number, since 2×1020769663² = 2083941409802267138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020769667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510384831 + 510384832.

It is an arithmetic number, because the mean of its divisors is an integer number (510384832).

Almost surely, 2^1020769663 is an apocalyptic number.

1020769663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020769663 is an equidigital number, since it uses as much as digits as its factorization.

1020769663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 1020769663 is about 31949.4861148032. The cubic root of 1020769663 is about 1006.8758355292.

The spelling of 1020769663 in words is "one billion, twenty million, seven hundred sixty-nine thousand, six hundred sixty-three".