28403350677 has 32 divisors (see below), whose sum is σ = 46369769600. Its totient is φ = 17072487936.

The previous prime is 28403350673. The next prime is 28403350733. The reversal of 28403350677 is 77605330482.

28403350677 is a `hidden beast` number, since 2 + 8 + 40 + 33 + 506 + 77 = 666.

It is not a de Polignac number, because 28403350677 - 2² = 28403350673 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28403350673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 925852 + ... + 956037.

It is an arithmetic number, because the mean of its divisors is an integer number (1449055300).

Almost surely, 2^28403350677 is an apocalyptic number.

28403350677 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

28403350677 is a deficient number, since it is larger than the sum of its proper divisors (17966418923).

28403350677 is a wasteful number, since it uses less digits than its factorization.

28403350677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881954 (or 1881948 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 28403350677 in words is "twenty-eight billion, four hundred three million, three hundred fifty thousand, six hundred seventy-seven".