28147637193 has 32 divisors (see below), whose sum is σ = 41103928320. Its totient is φ = 17029707840.

The previous prime is 28147637173. The next prime is 28147637227. The reversal of 28147637193 is 39173674182.

It is a happy number.

It is not a de Polignac number, because 28147637193 - 2¹² = 28147633097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28147637123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 533158 + ... + 583568.

It is an arithmetic number, because the mean of its divisors is an integer number (1284497760).

Almost surely, 2^28147637193 is an apocalyptic number.

It is an amenable number.

28147637193 is a deficient number, since it is larger than the sum of its proper divisors (12956291127).

28147637193 is a wasteful number, since it uses less digits than its factorization.

28147637193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50669.

The product of its digits is 1524096, while the sum is 51.

The spelling of 28147637193 in words is "twenty-eight billion, one hundred forty-seven million, six hundred thirty-seven thousand, one hundred ninety-three".