28773051432 has 64 divisors (see below), whose sum is σ = 75740736000. Its totient is φ = 9083565504.

The previous prime is 28773051427. The next prime is 28773051449. The reversal of 28773051432 is 23415037782.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053683 + ... + 2067645.

It is an arithmetic number, because the mean of its divisors is an integer number (1183449000).

Almost surely, 2^28773051432 is an apocalyptic number.

It is an amenable number.

28773051432 is an abundant number, since it is smaller than the sum of its proper divisors (46967684568).

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

28773051432 is a wasteful number, since it uses less digits than its factorization.

28773051432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18510 (or 18506 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 28773051432 in words is "twenty-eight billion, seven hundred seventy-three million, fifty-one thousand, four hundred thirty-two".