28912046819 has 2 divisors, whose sum is σ = 28912046820. Its totient is φ = 28912046818.

The previous prime is 28912046797. The next prime is 28912046833. The reversal of 28912046819 is 91864021982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28912046819 - 2¹² = 28912042723 is a prime.

It is a super-2 number, since 2×28912046819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28912046879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14456023409 + 14456023410.

It is an arithmetic number, because the mean of its divisors is an integer number (14456023410).

Almost surely, 2^28912046819 is an apocalyptic number.

28912046819 is a deficient number, since it is larger than the sum of its proper divisors (1).

28912046819 is an equidigital number, since it uses as much as digits as its factorization.

28912046819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 50.

The spelling of 28912046819 in words is "twenty-eight billion, nine hundred twelve million, forty-six thousand, eight hundred nineteen".