84624541861 has 32 divisors (see below), whose sum is σ = 92553062400. Its totient is φ = 77137674240.

The previous prime is 84624541777. The next prime is 84624541867. The reversal of 84624541861 is 16814542648.

It is a cyclic number.

It is not a de Polignac number, because 84624541861 - 2¹⁹ = 84624017573 is a prime.

It is a super-2 number, since 2×84624541861² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84624541867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16305855 + ... + 16311043.

It is an arithmetic number, because the mean of its divisors is an integer number (2892283200).

Almost surely, 2^84624541861 is an apocalyptic number.

It is an amenable number.

84624541861 is a deficient number, since it is larger than the sum of its proper divisors (7928520539).

84624541861 is a wasteful number, since it uses less digits than its factorization.

84624541861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5589.

The product of its digits is 1474560, while the sum is 49.

The spelling of 84624541861 in words is "eighty-four billion, six hundred twenty-four million, five hundred forty-one thousand, eight hundred sixty-one".