28731461263 has 2 divisors, whose sum is σ = 28731461264. Its totient is φ = 28731461262.

The previous prime is 28731461243. The next prime is 28731461267. The reversal of 28731461263 is 36216413782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28731461263 - 2²⁹ = 28194590351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28731461267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14365730631 + 14365730632.

It is an arithmetic number, because the mean of its divisors is an integer number (14365730632).

Almost surely, 2^28731461263 is an apocalyptic number.

28731461263 is a deficient number, since it is larger than the sum of its proper divisors (1).

28731461263 is an equidigital number, since it uses as much as digits as its factorization.

28731461263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The spelling of 28731461263 in words is "twenty-eight billion, seven hundred thirty-one million, four hundred sixty-one thousand, two hundred sixty-three".