28791428754 has 16 divisors (see below), whose sum is σ = 62817662880. Its totient is φ = 8724675360.

The previous prime is 28791428753. The next prime is 28791428761. The reversal of 28791428754 is 45782419782.

It is a junction number, because it is equal to n+sod(n) for n = 28791428694 and 28791428703.

It is not an unprimeable number, because it can be changed into a prime (28791428753) 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, 218116819 + ... + 218116950.

It is an arithmetic number, because the mean of its divisors is an integer number (3926103930).

Almost surely, 2^28791428754 is an apocalyptic number.

28791428754 is an abundant number, since it is smaller than the sum of its proper divisors (34026234126).

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

28791428754 is a wasteful number, since it uses less digits than its factorization.

28791428754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436233785.

The product of its digits is 9031680, while the sum is 57.

The spelling of 28791428754 in words is "twenty-eight billion, seven hundred ninety-one million, four hundred twenty-eight thousand, seven hundred fifty-four".