28631055876361 has 16 divisors (see below), whose sum is σ = 30586177108800. Its totient is φ = 26706080816128.

The previous prime is 28631055876343. The next prime is 28631055876383. The reversal of 28631055876361 is 16367855013682.

It is a cyclic number.

It is not a de Polignac number, because 28631055876361 - 2¹¹ = 28631055874313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28631055876361.

It is not an unprimeable number, because it can be changed into a prime (28631055871361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21599670 + ... + 22886848.

It is an arithmetic number, because the mean of its divisors is an integer number (1911636069300).

Almost surely, 2^{28631055876361} is an apocalyptic number.

It is an amenable number.

28631055876361 is a deficient number, since it is larger than the sum of its proper divisors (1955121232439).

28631055876361 is a wasteful number, since it uses less digits than its factorization.

28631055876361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298888.

The product of its (nonzero) digits is 43545600, while the sum is 61.

The spelling of 28631055876361 in words is "twenty-eight trillion, six hundred thirty-one billion, fifty-five million, eight hundred seventy-six thousand, three hundred sixty-one".