28226880031 has 8 divisors (see below), whose sum is σ = 32334142464. Its totient is φ = 24138330360.

The previous prime is 28226880029. The next prime is 28226880043. The reversal of 28226880031 is 13008862282.

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

It is a cyclic number.

It is not a de Polignac number, because 28226880031 - 2¹ = 28226880029 is a prime.

It is a super-2 number, since 2×28226880031² (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 (28226880091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4674955 + ... + 4680988.

It is an arithmetic number, because the mean of its divisors is an integer number (4041767808).

Almost surely, 2^28226880031 is an apocalyptic number.

28226880031 is a deficient number, since it is larger than the sum of its proper divisors (4107262433).

28226880031 is an equidigital number, since it uses as much as digits as its factorization.

28226880031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9356381.

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 28226880031 in words is "twenty-eight billion, two hundred twenty-six million, eight hundred eighty thousand, thirty-one".