28998552407 has 16 divisors (see below), whose sum is σ = 32756637600. Its totient is φ = 25429165440.

The previous prime is 28998552403. The next prime is 28998552413. The reversal of 28998552407 is 70425589982.

It is a cyclic number.

It is not a de Polignac number, because 28998552407 - 2² = 28998552403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28998552403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298493 + ... + 383529.

It is an arithmetic number, because the mean of its divisors is an integer number (2047289850).

Almost surely, 2^28998552407 is an apocalyptic number.

28998552407 is a deficient number, since it is larger than the sum of its proper divisors (3758085193).

28998552407 is a wasteful number, since it uses less digits than its factorization.

28998552407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86146.

The product of its (nonzero) digits is 14515200, while the sum is 59.

The spelling of 28998552407 in words is "twenty-eight billion, nine hundred ninety-eight million, five hundred fifty-two thousand, four hundred seven".