28486677772 has 24 divisors (see below), whose sum is σ = 56977240320. Its totient is φ = 12207743760.

The previous prime is 28486677763. The next prime is 28486677809. The reversal of 28486677772 is 27777668482.

It is a super-2 number, since 2×28486677772² (a number of 22 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, 565497 + ... + 613807.

It is an arithmetic number, because the mean of its divisors is an integer number (2374051680).

Almost surely, 2^28486677772 is an apocalyptic number.

It is an amenable number.

28486677772 is an abundant number, since it is smaller than the sum of its proper divisors (28490562548).

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

28486677772 is a wasteful number, since it uses less digits than its factorization.

28486677772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69381 (or 69379 counting only the distinct ones).

The product of its digits is 88510464, while the sum is 64.

The spelling of 28486677772 in words is "twenty-eight billion, four hundred eighty-six million, six hundred seventy-seven thousand, seven hundred seventy-two".