28634420700444 has 48 divisors (see below), whose sum is σ = 72082339747488. Its totient is φ = 8794773020928.

The previous prime is 28634420700427. The next prime is 28634420700461. The reversal of 28634420700444 is 44400702443682.

It is an interprime number because it is at equal distance from previous prime (28634420700427) and next prime (28634420700461).

It is a junction number, because it is equal to n+sod(n) for n = 28634420700393 and 28634420700402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164683287 + ... + 164857070.

It is an arithmetic number, because the mean of its divisors is an integer number (1501715411406).

Almost surely, 2^{28634420700444} is an apocalyptic number.

It is an amenable number.

28634420700444 is an abundant number, since it is smaller than the sum of its proper divisors (43447919047044).

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

28634420700444 is a wasteful number, since it uses less digits than its factorization.

28634420700444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329540934 (or 329540932 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 48.

The spelling of 28634420700444 in words is "twenty-eight trillion, six hundred thirty-four billion, four hundred twenty million, seven hundred thousand, four hundred forty-four".