28631011403 has 16 divisors (see below), whose sum is σ = 31950935040. Its totient is φ = 25539688800.

The previous prime is 28631011399. The next prime is 28631011421. The reversal of 28631011403 is 30411013682.

It is a cyclic number.

It is not a de Polignac number, because 28631011403 - 2² = 28631011399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28631011433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635093 + ... + 678678.

It is an arithmetic number, because the mean of its divisors is an integer number (1996933440).

Almost surely, 2^28631011403 is an apocalyptic number.

28631011403 is a deficient number, since it is larger than the sum of its proper divisors (3319923637).

28631011403 is a wasteful number, since it uses less digits than its factorization.

28631011403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313858.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 28631011403 in words is "twenty-eight billion, six hundred thirty-one million, eleven thousand, four hundred three".