28374361019 has 4 divisors (see below), whose sum is σ = 28377316800. Its totient is φ = 28371405240.

The previous prime is 28374360991. The next prime is 28374361027. The reversal of 28374361019 is 91016347382.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28374361019 is a prime.

It is a super-2 number, since 2×28374361019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28374361219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463444 + ... + 1482705.

It is an arithmetic number, because the mean of its divisors is an integer number (7094329200).

Almost surely, 2^28374361019 is an apocalyptic number.

28374361019 is a deficient number, since it is larger than the sum of its proper divisors (2955781).

28374361019 is an equidigital number, since it uses as much as digits as its factorization.

28374361019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955780.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 28374361019 in words is "twenty-eight billion, three hundred seventy-four million, three hundred sixty-one thousand, nineteen".