7797420053 has 4 divisors (see below), whose sum is σ = 7804529100. Its totient is φ = 7790311008.

The previous prime is 7797420041. The next prime is 7797420061. The reversal of 7797420053 is 3500247977.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5047676209 + 2749743844 = 71047^2 + 52438^2 .

It is a cyclic number.

It is not a de Polignac number, because 7797420053 - 2⁶ = 7797419989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7797419986 and 7797420013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7797420023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3552878 + ... + 3555071.

It is an arithmetic number, because the mean of its divisors is an integer number (1951132275).

Almost surely, 2^7797420053 is an apocalyptic number.

It is an amenable number.

7797420053 is a deficient number, since it is larger than the sum of its proper divisors (7109047).

7797420053 is a wasteful number, since it uses less digits than its factorization.

7797420053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7109046.

The product of its (nonzero) digits is 370440, while the sum is 44.

The square root of 7797420053 is about 88303.0013816065. The cubic root of 7797420053 is about 1982.9738033766.

The spelling of 7797420053 in words is "seven billion, seven hundred ninety-seven million, four hundred twenty thousand, fifty-three".