28077142842 has 96 divisors (see below), whose sum is σ = 71324757504. Its totient is φ = 7814880000.

The previous prime is 28077142817. The next prime is 28077142867. The reversal of 28077142842 is 24824177082.

It is an interprime number because it is at equal distance from previous prime (28077142817) and next prime (28077142867).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3876048 + ... + 3883284.

It is an arithmetic number, because the mean of its divisors is an integer number (742966224).

Almost surely, 2^28077142842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28077142842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35662378752).

28077142842 is an abundant number, since it is smaller than the sum of its proper divisors (43247614662).

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

28077142842 is a wasteful number, since it uses less digits than its factorization.

28077142842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044 (or 8041 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 45.

The spelling of 28077142842 in words is "twenty-eight billion, seventy-seven million, one hundred forty-two thousand, eight hundred forty-two".