85153337028621 has 24 divisors (see below), whose sum is σ = 132068804422464. Its totient is φ = 52677015995520.

The previous prime is 85153337028583. The next prime is 85153337028629. The reversal of 85153337028621 is 12682073335158.

85153337028621 is a `hidden beast` number, since 8 + 5 + 1 + 5 + 3 + 3 + 3 + 7 + 0 + 2 + 8 + 621 = 666.

It is not a de Polignac number, because 85153337028621 - 2¹⁷ = 85153336897549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85153337028629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3919409971 + ... + 3919431696.

It is an arithmetic number, because the mean of its divisors is an integer number (5502866850936).

Almost surely, 2^{85153337028621} is an apocalyptic number.

It is an amenable number.

85153337028621 is a deficient number, since it is larger than the sum of its proper divisors (46915467393843).

85153337028621 is a wasteful number, since it uses less digits than its factorization.

85153337028621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7838841761 (or 7838841758 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 85153337028621 in words is "eighty-five trillion, one hundred fifty-three billion, three hundred thirty-seven million, twenty-eight thousand, six hundred twenty-one".