28321425148 has 6 divisors (see below), whose sum is σ = 49562494016. Its totient is φ = 14160712572.

The previous prime is 28321425127. The next prime is 28321425169. The reversal of 28321425148 is 84152412382.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28321425127) and next prime (28321425169).

It is a self number, because there is not a number n which added to its sum of digits gives 28321425148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3540178140 + ... + 3540178147.

Almost surely, 2^28321425148 is an apocalyptic number.

It is an amenable number.

28321425148 is a deficient number, since it is larger than the sum of its proper divisors (21241068868).

28321425148 is a wasteful number, since it uses less digits than its factorization.

28321425148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7080356291 (or 7080356289 counting only the distinct ones).

The product of its digits is 122880, while the sum is 40.

The spelling of 28321425148 in words is "twenty-eight billion, three hundred twenty-one million, four hundred twenty-five thousand, one hundred forty-eight".