28311911857482 has 32 divisors (see below), whose sum is σ = 65022572689920. Its totient is φ = 8127821585520.

The previous prime is 28311911857457. The next prime is 28311911857513. The reversal of 28311911857482 is 28475811911382.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11288639838 + ... + 11288642345.

It is an arithmetic number, because the mean of its divisors is an integer number (2031955396560).

Almost surely, 2^{28311911857482} is an apocalyptic number.

28311911857482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28311911857482 is an abundant number, since it is smaller than the sum of its proper divisors (36710660832438).

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

28311911857482 is a wasteful number, since it uses less digits than its factorization.

28311911857482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22577282218.

The product of its digits is 7741440, while the sum is 60.

The spelling of 28311911857482 in words is "twenty-eight trillion, three hundred eleven billion, nine hundred eleven million, eight hundred fifty-seven thousand, four hundred eighty-two".