28142425650 has 24 divisors (see below), whose sum is σ = 69793215984. Its totient is φ = 7504646800.

The previous prime is 28142425631. The next prime is 28142425657. The reversal of 28142425650 is 5652424182.

It is a super-2 number, since 2×28142425650² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28142425599 and 28142425608.

It is not an unprimeable number, because it can be changed into a prime (28142425657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93807936 + ... + 93808235.

It is an arithmetic number, because the mean of its divisors is an integer number (2908050666).

Almost surely, 2^28142425650 is an apocalyptic number.

28142425650 is an abundant number, since it is smaller than the sum of its proper divisors (41650790334).

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

28142425650 is a wasteful number, since it uses less digits than its factorization.

28142425650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187616186 (or 187616181 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 39.

The spelling of 28142425650 in words is "twenty-eight billion, one hundred forty-two million, four hundred twenty-five thousand, six hundred fifty".