28279403001 has 6 divisors (see below), whose sum is σ = 40848026570. Its totient is φ = 18852935328.

The previous prime is 28279402979. The next prime is 28279403011. The reversal of 28279403001 is 10030497282.

28279403001 is a `hidden beast` number, since 282 + 79 + 4 + 0 + 300 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27789223401 + 490179600 = 166701^2 + 22140^2 .

It is not a de Polignac number, because 28279403001 - 2⁶ = 28279402937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28279403011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1571077936 + ... + 1571077953.

Almost surely, 2^28279403001 is an apocalyptic number.

It is an amenable number.

28279403001 is a deficient number, since it is larger than the sum of its proper divisors (12568623569).

28279403001 is a wasteful number, since it uses less digits than its factorization.

28279403001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142155895 (or 3142155892 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 28279403001 in words is "twenty-eight billion, two hundred seventy-nine million, four hundred three thousand, one".