28374493031 has 8 divisors (see below), whose sum is σ = 28478218944. Its totient is φ = 28270944000.

The previous prime is 28374493027. The next prime is 28374493057. The reversal of 28374493031 is 13039447382.

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 28374493031 - 2² = 28374493027 is a prime.

It is a super-2 number, since 2×28374493031² (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 (28374483031) 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, 281555 + ... + 368811.

It is an arithmetic number, because the mean of its divisors is an integer number (3559777368).

Almost surely, 2^28374493031 is an apocalyptic number.

28374493031 is a deficient number, since it is larger than the sum of its proper divisors (103725913).

28374493031 is an equidigital number, since it uses as much as digits as its factorization.

28374493031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88441.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 28374493031 in words is "twenty-eight billion, three hundred seventy-four million, four hundred ninety-three thousand, thirty-one".