28176238915960 has 32 divisors (see below), whose sum is σ = 63566501502240. Its totient is φ = 11240279754624.

The previous prime is 28176238915931. The next prime is 28176238915967. The reversal of 28176238915960 is 6951983267182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28176238915967) 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, 944229012 + ... + 944258851.

It is an arithmetic number, because the mean of its divisors is an integer number (1986453171945).

Almost surely, 2^{28176238915960} is an apocalyptic number.

28176238915960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28176238915960 is an abundant number, since it is smaller than the sum of its proper divisors (35390262586280).

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

28176238915960 is a wasteful number, since it uses less digits than its factorization.

28176238915960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888488247 (or 1888488243 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 67.

The spelling of 28176238915960 in words is "twenty-eight trillion, one hundred seventy-six billion, two hundred thirty-eight million, nine hundred fifteen thousand, nine hundred sixty".