28374788195 has 48 divisors (see below), whose sum is σ = 39061657440. Its totient is φ = 19722673152.

The previous prime is 28374788191. The next prime is 28374788249. The reversal of 28374788195 is 59188747382.

It is not a de Polignac number, because 28374788195 - 2² = 28374788191 is a prime.

It is a super-2 number, since 2×28374788195² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28374788191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2515007 + ... + 2526263.

It is an arithmetic number, because the mean of its divisors is an integer number (813784530).

Almost surely, 2^28374788195 is an apocalyptic number.

28374788195 is a deficient number, since it is larger than the sum of its proper divisors (10686869245).

28374788195 is a wasteful number, since it uses less digits than its factorization.

28374788195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11464 (or 11451 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 62.

The spelling of 28374788195 in words is "twenty-eight billion, three hundred seventy-four million, seven hundred eighty-eight thousand, one hundred ninety-five".