7854354493 has 2 divisors, whose sum is σ = 7854354494. Its totient is φ = 7854354492.

The previous prime is 7854354427. The next prime is 7854354509. The reversal of 7854354493 is 3944534587.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6717113764 + 1137240729 = 81958^2 + 33723^2 .

It is a cyclic number.

It is not a de Polignac number, because 7854354493 - 2²¹ = 7852257341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7854354493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7854355493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3927177246 + 3927177247.

It is an arithmetic number, because the mean of its divisors is an integer number (3927177247).

Almost surely, 2^7854354493 is an apocalyptic number.

It is an amenable number.

7854354493 is a deficient number, since it is larger than the sum of its proper divisors (1).

7854354493 is an equidigital number, since it uses as much as digits as its factorization.

7854354493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 52.

The square root of 7854354493 is about 88624.7961520928. The cubic root of 7854354493 is about 1987.7884653780.

The spelling of 7854354493 in words is "seven billion, eight hundred fifty-four million, three hundred fifty-four thousand, four hundred ninety-three".