28005505415 has 8 divisors (see below), whose sum is σ = 33608360688. Its totient is φ = 22403234880.

The previous prime is 28005505351. The next prime is 28005505427. The reversal of 28005505415 is 51450550082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28005505415 - 2⁶ = 28005505351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32822 + ... + 238931.

It is an arithmetic number, because the mean of its divisors is an integer number (4201045086).

Almost surely, 2^28005505415 is an apocalyptic number.

28005505415 is a deficient number, since it is larger than the sum of its proper divisors (5602855273).

28005505415 is a wasteful number, since it uses less digits than its factorization.

28005505415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292369.

The product of its (nonzero) digits is 40000, while the sum is 35.

The spelling of 28005505415 in words is "twenty-eight billion, five million, five hundred five thousand, four hundred fifteen".