28308324331401 has 32 divisors (see below), whose sum is σ = 37937453621760. Its totient is φ = 18775887600000.

The previous prime is 28308324331381. The next prime is 28308324331411. The reversal of 28308324331401 is 10413342380382.

It is not a de Polignac number, because 28308324331401 - 2³⁰ = 28307250589577 is a prime.

It is a super-2 number, since 2×28308324331401² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28308324331411) 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, 3499603365 + ... + 3499611453.

It is an arithmetic number, because the mean of its divisors is an integer number (1185545425680).

Almost surely, 2^{28308324331401} is an apocalyptic number.

It is an amenable number.

28308324331401 is a deficient number, since it is larger than the sum of its proper divisors (9629129290359).

28308324331401 is a wasteful number, since it uses less digits than its factorization.

28308324331401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12997.

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 28308324331401 in words is "twenty-eight trillion, three hundred eight billion, three hundred twenty-four million, three hundred thirty-one thousand, four hundred one".