7782277097 has 4 divisors (see below), whose sum is σ = 8894030976. Its totient is φ = 6670523220.

The previous prime is 7782277073. The next prime is 7782277141. The reversal of 7782277097 is 7907722877.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7782277097 - 2¹⁶ = 7782211561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7782277067) 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, 555876929 + ... + 555876942.

It is an arithmetic number, because the mean of its divisors is an integer number (2223507744).

Almost surely, 2^7782277097 is an apocalyptic number.

It is an amenable number.

7782277097 is a deficient number, since it is larger than the sum of its proper divisors (1111753879).

7782277097 is a wasteful number, since it uses less digits than its factorization.

7782277097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111753878.

The product of its (nonzero) digits is 4840416, while the sum is 56.

The square root of 7782277097 is about 88217.2154230681. The cubic root of 7782277097 is about 1981.6892954026.

The spelling of 7782277097 in words is "seven billion, seven hundred eighty-two million, two hundred seventy-seven thousand, ninety-seven".