28694455104 has 224 divisors, whose sum is σ = 90178404352. Its totient is φ = 7879680000.

The previous prime is 28694455093. The next prime is 28694455117. The reversal of 28694455104 is 40155449682.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6288984 + ... + 6293544.

Almost surely, 2^28694455104 is an apocalyptic number.

28694455104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28694455104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45089202176).

28694455104 is an abundant number, since it is smaller than the sum of its proper divisors (61483949248).

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

28694455104 is a wasteful number, since it uses less digits than its factorization.

28694455104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765 (or 4755 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 28694455104 in words is "twenty-eight billion, six hundred ninety-four million, four hundred fifty-five thousand, one hundred four".