28015415139 has 8 divisors (see below), whose sum is σ = 38558851072. Its totient is φ = 18074461320.

The previous prime is 28015415117. The next prime is 28015415147. The reversal of 28015415139 is 93151451082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28015415139 - 2⁹ = 28015414627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28015415097 and 28015415106.

It is not an unprimeable number, because it can be changed into a prime (28015415539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150620419 + ... + 150620604.

It is an arithmetic number, because the mean of its divisors is an integer number (4819856384).

Almost surely, 2^28015415139 is an apocalyptic number.

28015415139 is a deficient number, since it is larger than the sum of its proper divisors (10543435933).

28015415139 is a wasteful number, since it uses less digits than its factorization.

28015415139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301241057.

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 28015415139 in words is "twenty-eight billion, fifteen million, four hundred fifteen thousand, one hundred thirty-nine".