28984774739019 has 16 divisors (see below), whose sum is σ = 42159932056704. Its totient is φ = 17566421932800.

The previous prime is 28984774738921. The next prime is 28984774739021. The reversal of 28984774739019 is 91093747748982.

It is not a de Polignac number, because 28984774739019 - 2⁷ = 28984774738891 is a prime.

It is a super-2 number, since 2×28984774739019² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28984774739099) 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, 2906652 + ... + 8149734.

It is an arithmetic number, because the mean of its divisors is an integer number (2634995753544).

Almost surely, 2^{28984774739019} is an apocalyptic number.

28984774739019 is a deficient number, since it is larger than the sum of its proper divisors (13175157317685).

28984774739019 is a wasteful number, since it uses less digits than its factorization.

28984774739019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5410618.

The product of its (nonzero) digits is 1536288768, while the sum is 78.

The spelling of 28984774739019 in words is "twenty-eight trillion, nine hundred eighty-four billion, seven hundred seventy-four million, seven hundred thirty-nine thousand, nineteen".