28888572887430 has 64 divisors (see below), whose sum is σ = 69367169776320. Its totient is φ = 7699776569856.

The previous prime is 28888572887401. The next prime is 28888572887507. The reversal of 28888572887430 is 3478827588882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532059364 + ... + 532113656.

It is an arithmetic number, because the mean of its divisors is an integer number (1083862027755).

Almost surely, 2^{28888572887430} is an apocalyptic number.

28888572887430 is an abundant number, since it is smaller than the sum of its proper divisors (40478596888890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28888572887430 is a wasteful number, since it uses less digits than its factorization.

28888572887430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62825.

The product of its (nonzero) digits is 3082813440, while the sum is 78.

The spelling of 28888572887430 in words is "twenty-eight trillion, eight hundred eighty-eight billion, five hundred seventy-two million, eight hundred eighty-seven thousand, four hundred thirty".