84625633917 has 24 divisors (see below), whose sum is σ = 133650567648. Its totient is φ = 51172461600.

The previous prime is 84625633849. The next prime is 84625633943. The reversal of 84625633917 is 71933652648.

84625633917 is a `hidden beast` number, since 8 + 4 + 62 + 563 + 3 + 9 + 17 = 666.

It is not a de Polignac number, because 84625633917 - 2¹² = 84625629821 is a prime.

It is a super-2 number, since 2×84625633917² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84625633997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 920934 + ... + 1008647.

It is an arithmetic number, because the mean of its divisors is an integer number (5568773652).

Almost surely, 2^84625633917 is an apocalyptic number.

It is an amenable number.

84625633917 is a deficient number, since it is larger than the sum of its proper divisors (49024933731).

84625633917 is a wasteful number, since it uses less digits than its factorization.

84625633917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930041 (or 1930038 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 84625633917 in words is "eighty-four billion, six hundred twenty-five million, six hundred thirty-three thousand, nine hundred seventeen".