28694809632 has 48 divisors (see below), whose sum is σ = 76355727840. Its totient is φ = 9433907712.

The previous prime is 28694809607. The next prime is 28694809657. The reversal of 28694809632 is 23690849682.

It is an interprime number because it is at equal distance from previous prime (28694809607) and next prime (28694809657).

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2040282 + ... + 2054297.

It is an arithmetic number, because the mean of its divisors is an integer number (1590744330).

Almost surely, 2^28694809632 is an apocalyptic number.

It is an amenable number.

28694809632 is an abundant number, since it is smaller than the sum of its proper divisors (47660918208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28694809632 is a wasteful number, since it uses less digits than its factorization.

28694809632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094665 (or 4094657 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 57.

The spelling of 28694809632 in words is "twenty-eight billion, six hundred ninety-four million, eight hundred nine thousand, six hundred thirty-two".