28345037318453 has 2 divisors, whose sum is σ = 28345037318454. Its totient is φ = 28345037318452.

The previous prime is 28345037318371. The next prime is 28345037318459. The reversal of 28345037318453 is 35481373054382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15893123077924 + 12451914240529 = 3986618^2 + 3528727^2 .

It is a cyclic number.

It is not a de Polignac number, because 28345037318453 - 2¹⁸ = 28345037056309 is a prime.

It is a super-2 number, since 2×28345037318453² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28345037318459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14172518659226 + 14172518659227.

It is an arithmetic number, because the mean of its divisors is an integer number (14172518659227).

Almost surely, 2^{28345037318453} is an apocalyptic number.

It is an amenable number.

28345037318453 is a deficient number, since it is larger than the sum of its proper divisors (1).

28345037318453 is an equidigital number, since it uses as much as digits as its factorization.

28345037318453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29030400, while the sum is 56.

The spelling of 28345037318453 in words is "twenty-eight trillion, three hundred forty-five billion, thirty-seven million, three hundred eighteen thousand, four hundred fifty-three".