7857914453 has 4 divisors (see below), whose sum is σ = 7858291980. Its totient is φ = 7857536928.

The previous prime is 7857914447. The next prime is 7857914497. The reversal of 7857914453 is 3544197587.

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 1866844849 + 5991069604 = 43207^2 + 77402^2 .

It is a cyclic number.

It is not a de Polignac number, because 7857914453 - 2¹⁶ = 7857848917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7857914395 and 7857914404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7857944453) 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, 155600 + ... + 199817.

It is an arithmetic number, because the mean of its divisors is an integer number (1964572995).

Almost surely, 2^7857914453 is an apocalyptic number.

It is an amenable number.

7857914453 is a deficient number, since it is larger than the sum of its proper divisors (377527).

7857914453 is a wasteful number, since it uses less digits than its factorization.

7857914453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377526.

The product of its digits is 4233600, while the sum is 53.

The square root of 7857914453 is about 88644.8783235670. The cubic root of 7857914453 is about 1988.0887395158.

The spelling of 7857914453 in words is "seven billion, eight hundred fifty-seven million, nine hundred fourteen thousand, four hundred fifty-three".