28453063557 has 32 divisors (see below), whose sum is σ = 41172751872. Its totient is φ = 17409567744.

The previous prime is 28453063543. The next prime is 28453063571. The reversal of 28453063557 is 75536035482.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28453063543) and next prime (28453063571).

It is not a de Polignac number, because 28453063557 - 2²⁴ = 28436286341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28453063657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 642543 + ... + 685395.

It is an arithmetic number, because the mean of its divisors is an integer number (1286648496).

Almost surely, 2^28453063557 is an apocalyptic number.

It is an amenable number.

28453063557 is a deficient number, since it is larger than the sum of its proper divisors (12719688315).

28453063557 is a wasteful number, since it uses less digits than its factorization.

28453063557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43197.

The product of its (nonzero) digits is 3024000, while the sum is 48.

The spelling of 28453063557 in words is "twenty-eight billion, four hundred fifty-three million, sixty-three thousand, five hundred fifty-seven".