28135376140 has 24 divisors (see below), whose sum is σ = 59099023872. Its totient is φ = 11251344000.

The previous prime is 28135376119. The next prime is 28135376141. The reversal of 28135376140 is 4167353182.

It is a junction number, because it is equal to n+sod(n) for n = 28135376093 and 28135376102.

It is not an unprimeable number, because it can be changed into a prime (28135376141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92236 + ... + 254515.

It is an arithmetic number, because the mean of its divisors is an integer number (2462459328).

Almost surely, 2^28135376140 is an apocalyptic number.

28135376140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28135376140 is an abundant number, since it is smaller than the sum of its proper divisors (30963647732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28135376140 is a wasteful number, since it uses less digits than its factorization.

28135376140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350817 (or 350815 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 28135376140 in words is "twenty-eight billion, one hundred thirty-five million, three hundred seventy-six thousand, one hundred forty".