5388874921 has 2 divisors, whose sum is σ = 5388874922. Its totient is φ = 5388874920.

The previous prime is 5388874903. The next prime is 5388874949. The reversal of 5388874921 is 1294788835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3864362896 + 1524512025 = 62164^2 + 39045^2 .

It is a cyclic number.

It is not a de Polignac number, because 5388874921 - 2⁵ = 5388874889 is a prime.

It is not a weakly prime, because it can be changed into another prime (5388874901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2694437460 + 2694437461.

It is an arithmetic number, because the mean of its divisors is an integer number (2694437461).

Almost surely, 2^5388874921 is an apocalyptic number.

It is an amenable number.

5388874921 is a deficient number, since it is larger than the sum of its proper divisors (1).

5388874921 is an equidigital number, since it uses as much as digits as its factorization.

5388874921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 55.

The square root of 5388874921 is about 73408.9566810481. The cubic root of 5388874921 is about 1753.2050024343.

The spelling of 5388874921 in words is "five billion, three hundred eighty-eight million, eight hundred seventy-four thousand, nine hundred twenty-one".