28400001628264 has 32 divisors (see below), whose sum is σ = 61193373696000. Its totient is φ = 12104183799360.

The previous prime is 28400001628261. The next prime is 28400001628283. The reversal of 28400001628264 is 46282610000482.

It is a self number, because there is not a number n which added to its sum of digits gives 28400001628264.

It is not an unprimeable number, because it can be changed into a prime (28400001628261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1400937064 + ... + 1400957335.

It is an arithmetic number, because the mean of its divisors is an integer number (1912292928000).

Almost surely, 2^{28400001628264} is an apocalyptic number.

It is an amenable number.

28400001628264 is an abundant number, since it is smaller than the sum of its proper divisors (32793372067736).

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

28400001628264 is a wasteful number, since it uses less digits than its factorization.

28400001628264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801894593 (or 2801894589 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 43.

The spelling of 28400001628264 in words is "twenty-eight trillion, four hundred billion, one million, six hundred twenty-eight thousand, two hundred sixty-four".