7726797897 has 48 divisors (see below), whose sum is σ = 12992257152. Its totient is φ = 4048531200.

The previous prime is 7726797889. The next prime is 7726797901. The reversal of 7726797897 is 7987976277.

It is not a de Polignac number, because 7726797897 - 2³ = 7726797889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7726797877) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 275173 + ... + 301949.

It is an arithmetic number, because the mean of its divisors is an integer number (270672024).

Almost surely, 2^7726797897 is an apocalyptic number.

It is an amenable number.

7726797897 is a deficient number, since it is larger than the sum of its proper divisors (5265459255).

7726797897 is a wasteful number, since it uses less digits than its factorization.

7726797897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26958 (or 26951 counting only the distinct ones).

The product of its digits is 130691232, while the sum is 69.

The square root of 7726797897 is about 87902.2064398841. The cubic root of 7726797897 is about 1976.9689617489.

The spelling of 7726797897 in words is "seven billion, seven hundred twenty-six million, seven hundred ninety-seven thousand, eight hundred ninety-seven".