28385258630554 has 16 divisors (see below), whose sum is σ = 49246713770688. Its totient is φ = 12018543240672.

The previous prime is 28385258630551. The next prime is 28385258630569. The reversal of 28385258630554 is 45503685258382.

It is not an unprimeable number, because it can be changed into a prime (28385258630551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12213965547 + ... + 12213967870.

It is an arithmetic number, because the mean of its divisors is an integer number (3077919610668).

Almost surely, 2^{28385258630554} is an apocalyptic number.

28385258630554 is a deficient number, since it is larger than the sum of its proper divisors (20861455140134).

28385258630554 is a wasteful number, since it uses less digits than its factorization.

28385258630554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24427933509.

The product of its (nonzero) digits is 276480000, while the sum is 64.

The spelling of 28385258630554 in words is "twenty-eight trillion, three hundred eighty-five billion, two hundred fifty-eight million, six hundred thirty thousand, five hundred fifty-four".