85421421602928 has 50 divisors (see below), whose sum is σ = 247234376880744. Its totient is φ = 28473807200544.

The previous prime is 85421421602903. The next prime is 85421421602941. The reversal of 85421421602928 is 82920612412458.

It is a happy number.

85421421602928 is a `hidden beast` number, since 8 + 5 + 4 + 2 + 1 + 4 + 2 + 1 + 602 + 9 + 28 = 666.

85421421602928 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 32955794076 + ... + 32955796667.

Almost surely, 2^{85421421602928} is an apocalyptic number.

It is an amenable number.

85421421602928 is an abundant number, since it is smaller than the sum of its proper divisors (161812955277816).

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

85421421602928 is a wasteful number, since it uses less digits than its factorization.

85421421602928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65911590763 (or 65911590748 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 85421421602928 in words is "eighty-five trillion, four hundred twenty-one billion, four hundred twenty-one million, six hundred two thousand, nine hundred twenty-eight".