28915066379 has 2 divisors, whose sum is σ = 28915066380. Its totient is φ = 28915066378.

The previous prime is 28915066373. The next prime is 28915066391. The reversal of 28915066379 is 97366051982.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28915066379 - 2⁴ = 28915066363 is a prime.

It is not a weakly prime, because it can be changed into another prime (28915066373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14457533189 + 14457533190.

It is an arithmetic number, because the mean of its divisors is an integer number (14457533190).

Almost surely, 2^28915066379 is an apocalyptic number.

28915066379 is a deficient number, since it is larger than the sum of its proper divisors (1).

28915066379 is an equidigital number, since it uses as much as digits as its factorization.

28915066379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 28915066379 in words is "twenty-eight billion, nine hundred fifteen million, sixty-six thousand, three hundred seventy-nine".