28372398136 has 32 divisors (see below), whose sum is σ = 54274147200. Its totient is φ = 13900841440.

The previous prime is 28372398107. The next prime is 28372398137. The reversal of 28372398136 is 63189327382.

It is a super-3 number, since 3×28372398136³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28372398137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50151 + ... + 243433.

It is an arithmetic number, because the mean of its divisors is an integer number (1696067100).

Almost surely, 2^28372398136 is an apocalyptic number.

It is an amenable number.

28372398136 is a deficient number, since it is larger than the sum of its proper divisors (25901749064).

28372398136 is a wasteful number, since it uses less digits than its factorization.

28372398136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193659 (or 193655 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 52.

The spelling of 28372398136 in words is "twenty-eight billion, three hundred seventy-two million, three hundred ninety-eight thousand, one hundred thirty-six".