28487882121512 has 32 divisors (see below), whose sum is σ = 58282730668800. Its totient is φ = 12946356729600.

The previous prime is 28487882121509. The next prime is 28487882121541. The reversal of 28487882121512 is 21512128878482.

It is a happy number.

It is a super-2 number, since 2×28487882121512² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33079937 + ... + 33930192.

It is an arithmetic number, because the mean of its divisors is an integer number (1821335333400).

Almost surely, 2^{28487882121512} is an apocalyptic number.

28487882121512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28487882121512 is an abundant number, since it is smaller than the sum of its proper divisors (29794848547288).

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

28487882121512 is a wasteful number, since it uses less digits than its factorization.

28487882121512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67014977 (or 67014973 counting only the distinct ones).

The product of its digits is 9175040, while the sum is 59.

The spelling of 28487882121512 in words is "twenty-eight trillion, four hundred eighty-seven billion, eight hundred eighty-two million, one hundred twenty-one thousand, five hundred twelve".