84616153861 has 8 divisors (see below), whose sum is σ = 87540766200. Its totient is φ = 81691995840.

The previous prime is 84616153859. The next prime is 84616153879. The reversal of 84616153861 is 16835161648.

It can be written as a sum of positive squares in 4 ways, for example, as 23594803236 + 61021350625 = 153606^2 + 247025^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 84616153861 - 2¹ = 84616153859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84616153891) 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, 289671 + ... + 503131.

It is an arithmetic number, because the mean of its divisors is an integer number (10942595775).

Almost surely, 2^84616153861 is an apocalyptic number.

It is an amenable number.

84616153861 is a deficient number, since it is larger than the sum of its proper divisors (2924612339).

84616153861 is a wasteful number, since it uses less digits than its factorization.

84616153861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227159.

The product of its digits is 829440, while the sum is 49.

The spelling of 84616153861 in words is "eighty-four billion, six hundred sixteen million, one hundred fifty-three thousand, eight hundred sixty-one".