28987273542 has 32 divisors (see below), whose sum is σ = 58384372608. Its totient is φ = 9594230976.

The previous prime is 28987273541. The next prime is 28987273577. The reversal of 28987273542 is 24537278982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28987273541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1085098 + ... + 1111490.

It is an arithmetic number, because the mean of its divisors is an integer number (1824511644).

Almost surely, 2^28987273542 is an apocalyptic number.

28987273542 is an abundant number, since it is smaller than the sum of its proper divisors (29397099066).

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

28987273542 is a wasteful number, since it uses less digits than its factorization.

28987273542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27684.

The product of its digits is 13547520, while the sum is 57.

The spelling of 28987273542 in words is "twenty-eight billion, nine hundred eighty-seven million, two hundred seventy-three thousand, five hundred forty-two".