28628416700454 has 32 divisors (see below), whose sum is σ = 58459477313664. Its totient is φ = 9344399845760.

The previous prime is 28628416700431. The next prime is 28628416700459. The reversal of 28628416700454 is 45400761482682.

It is a happy number.

It is a super-2 number, since 2×28628416700454² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28628416700394 and 28628416700403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28628416700459) 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, 254310012 + ... + 254422559.

It is an arithmetic number, because the mean of its divisors is an integer number (1826858666052).

Almost surely, 2^{28628416700454} is an apocalyptic number.

28628416700454 is an abundant number, since it is smaller than the sum of its proper divisors (29831060613210).

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

28628416700454 is a wasteful number, since it uses less digits than its factorization.

28628416700454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508732772.

The product of its (nonzero) digits is 20643840, while the sum is 57.

The spelling of 28628416700454 in words is "twenty-eight trillion, six hundred twenty-eight billion, four hundred sixteen million, seven hundred thousand, four hundred fifty-four".