7790761663 has 4 divisors (see below), whose sum is σ = 7791593040. Its totient is φ = 7789930288.

The previous prime is 7790761661. The next prime is 7790761669. The reversal of 7790761663 is 3661670977.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7790761663 - 2¹ = 7790761661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7790761663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7790761661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401470 + ... + 420427.

It is an arithmetic number, because the mean of its divisors is an integer number (1947898260).

Almost surely, 2^7790761663 is an apocalyptic number.

7790761663 is a deficient number, since it is larger than the sum of its proper divisors (831377).

7790761663 is an equidigital number, since it uses as much as digits as its factorization.

7790761663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831376.

The product of its (nonzero) digits is 2000376, while the sum is 52.

The square root of 7790761663 is about 88265.2913834198. The cubic root of 7790761663 is about 1982.4092075288.

The spelling of 7790761663 in words is "seven billion, seven hundred ninety million, seven hundred sixty-one thousand, six hundred sixty-three".