84623153847 has 4 divisors (see below), whose sum is σ = 112830871800. Its totient is φ = 56415435896.

The previous prime is 84623153831. The next prime is 84623153861. The reversal of 84623153847 is 74835132648.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84623153847 - 2⁴ = 84623153831 is a prime.

It is a super-2 number, since 2×84623153847² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84623153847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84623155847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14103858972 + ... + 14103858977.

It is an arithmetic number, because the mean of its divisors is an integer number (28207717950).

Almost surely, 2^84623153847 is an apocalyptic number.

84623153847 is a deficient number, since it is larger than the sum of its proper divisors (28207717953).

84623153847 is a wasteful number, since it uses less digits than its factorization.

84623153847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28207717952.

The product of its digits is 3870720, while the sum is 51.

The spelling of 84623153847 in words is "eighty-four billion, six hundred twenty-three million, one hundred fifty-three thousand, eight hundred forty-seven".