28125009462 has 32 divisors (see below), whose sum is σ = 62140423680. Its totient is φ = 8414845920.

The previous prime is 28125009461. The next prime is 28125009509. The reversal of 28125009462 is 26490052182.

It is a self number, because there is not a number n which added to its sum of digits gives 28125009462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28125009461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2691853 + ... + 2702280.

It is an arithmetic number, because the mean of its divisors is an integer number (1941888240).

Almost surely, 2^28125009462 is an apocalyptic number.

28125009462 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28125009462 is an abundant number, since it is smaller than the sum of its proper divisors (34015414218).

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

28125009462 is a wasteful number, since it uses less digits than its factorization.

28125009462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5394228.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 28125009462 in words is "twenty-eight billion, one hundred twenty-five million, nine thousand, four hundred sixty-two".