28702115463 has 16 divisors (see below), whose sum is σ = 44453551616. Its totient is φ = 16132335840.

The previous prime is 28702115459. The next prime is 28702115471. The reversal of 28702115463 is 36451120782.

It is not a de Polignac number, because 28702115463 - 2² = 28702115459 is a prime.

It is a super-2 number, since 2×28702115463² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28702115423) 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 15 ways as a sum of consecutive naturals, for example, 11201731 + ... + 11204292.

It is an arithmetic number, because the mean of its divisors is an integer number (2778346976).

Almost surely, 2^28702115463 is an apocalyptic number.

28702115463 is a deficient number, since it is larger than the sum of its proper divisors (15751436153).

28702115463 is a wasteful number, since it uses less digits than its factorization.

28702115463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22406094.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 28702115463 in words is "twenty-eight billion, seven hundred two million, one hundred fifteen thousand, four hundred sixty-three".