28041388122 has 32 divisors (see below), whose sum is σ = 63290911680. Its totient is φ = 8204376320.

The previous prime is 28041388121. The next prime is 28041388129. The reversal of 28041388122 is 22188314082.

It is not an unprimeable number, because it can be changed into a prime (28041388121) 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, 7323423 + ... + 7327250.

It is an arithmetic number, because the mean of its divisors is an integer number (1977840990).

Almost surely, 2^28041388122 is an apocalyptic number.

28041388122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28041388122 is an abundant number, since it is smaller than the sum of its proper divisors (35249523558).

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

28041388122 is a wasteful number, since it uses less digits than its factorization.

28041388122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14650718.

The product of its (nonzero) digits is 49152, while the sum is 39.

The spelling of 28041388122 in words is "twenty-eight billion, forty-one million, three hundred eighty-eight thousand, one hundred twenty-two".