4081284772015 has 24 divisors (see below), whose sum is σ = 5666577220080. Its totient is φ = 2811985672320.

The previous prime is 4081284771989. The next prime is 4081284772067. The reversal of 4081284772015 is 5102774821804.

It is a happy number.

It is not a de Polignac number, because 4081284772015 - 2¹⁹ = 4081284247727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4081284772015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177512854 + ... + 177535843.

It is an arithmetic number, because the mean of its divisors is an integer number (236107384170).

Almost surely, 2^{4081284772015} is an apocalyptic number.

4081284772015 is a deficient number, since it is larger than the sum of its proper divisors (1585292448065).

4081284772015 is a wasteful number, since it uses less digits than its factorization.

4081284772015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355048743 (or 355048732 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 49.

The spelling of 4081284772015 in words is "four trillion, eighty-one billion, two hundred eighty-four million, seven hundred seventy-two thousand, fifteen".