28695915948 has 48 divisors (see below), whose sum is σ = 78990915584. Its totient is φ = 7934353920.

The previous prime is 28695915931. The next prime is 28695915953. The reversal of 28695915948 is 84951959682.

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, 5507365 + ... + 5512572.

Almost surely, 2^28695915948 is an apocalyptic number.

28695915948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28695915948 is an abundant number, since it is smaller than the sum of its proper divisors (50294999636).

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

28695915948 is a wasteful number, since it uses less digits than its factorization.

28695915948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11019982 (or 11019980 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 66.

The spelling of 28695915948 in words is "twenty-eight billion, six hundred ninety-five million, nine hundred fifteen thousand, nine hundred forty-eight".