28157942703 has 8 divisors (see below), whose sum is σ = 40957007616. Its totient is φ = 17065419800.

The previous prime is 28157942663. The next prime is 28157942713. The reversal of 28157942703 is 30724975182.

It is a happy number.

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

It is not a de Polignac number, because 28157942703 - 2¹² = 28157938607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28157942713) 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, 426635463 + ... + 426635528.

It is an arithmetic number, because the mean of its divisors is an integer number (5119625952).

Almost surely, 2^28157942703 is an apocalyptic number.

28157942703 is a deficient number, since it is larger than the sum of its proper divisors (12799064913).

28157942703 is a wasteful number, since it uses less digits than its factorization.

28157942703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853271005.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 28157942703 in words is "twenty-eight billion, one hundred fifty-seven million, nine hundred forty-two thousand, seven hundred three".