28433357655 has 8 divisors (see below), whose sum is σ = 45493372272. Its totient is φ = 15164457408.

The previous prime is 28433357653. The next prime is 28433357657. The reversal of 28433357655 is 55675333482.

It is an interprime number because it is at equal distance from previous prime (28433357653) and next prime (28433357657).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28433357655 - 2¹ = 28433357653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28433357598 and 28433357607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28433357653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 947778574 + ... + 947778603.

It is an arithmetic number, because the mean of its divisors is an integer number (5686671534).

Almost surely, 2^28433357655 is an apocalyptic number.

28433357655 is a deficient number, since it is larger than the sum of its proper divisors (17060014617).

28433357655 is a wasteful number, since it uses less digits than its factorization.

28433357655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895557185.

The product of its digits is 9072000, while the sum is 51.

The spelling of 28433357655 in words is "twenty-eight billion, four hundred thirty-three million, three hundred fifty-seven thousand, six hundred fifty-five".