28011666340175 has 48 divisors (see below), whose sum is σ = 40100351835840. Its totient is φ = 19013573283840.

The previous prime is 28011666340153. The next prime is 28011666340237. The reversal of 28011666340175 is 57104366611082.

It is not a de Polignac number, because 28011666340175 - 2⁶ = 28011666340111 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4912799 + ... + 8953151.

It is an arithmetic number, because the mean of its divisors is an integer number (835423996580).

Almost surely, 2^{28011666340175} is an apocalyptic number.

28011666340175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28011666340175 is a deficient number, since it is larger than the sum of its proper divisors (12088685495665).

28011666340175 is a wasteful number, since it uses less digits than its factorization.

28011666340175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040772 (or 4040767 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 28011666340175 in words is "twenty-eight trillion, eleven billion, six hundred sixty-six million, three hundred forty thousand, one hundred seventy-five".