28542197371 has 2 divisors, whose sum is σ = 28542197372. Its totient is φ = 28542197370.

The previous prime is 28542197357. The next prime is 28542197401. The reversal of 28542197371 is 17379124582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28542197371 - 2¹⁷ = 28542066299 is a prime.

It is not a weakly prime, because it can be changed into another prime (28542197351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14271098685 + 14271098686.

It is an arithmetic number, because the mean of its divisors is an integer number (14271098686).

Almost surely, 2^28542197371 is an apocalyptic number.

28542197371 is a deficient number, since it is larger than the sum of its proper divisors (1).

28542197371 is an equidigital number, since it uses as much as digits as its factorization.

28542197371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 49.

The spelling of 28542197371 in words is "twenty-eight billion, five hundred forty-two million, one hundred ninety-seven thousand, three hundred seventy-one".