84370220023 has 4 divisors (see below), whose sum is σ = 89333174160. Its totient is φ = 79407265888.

The previous prime is 84370220017. The next prime is 84370220027. The reversal of 84370220023 is 32002207348.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84370220023 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 (84370220027) 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 3 ways as a sum of consecutive naturals, for example, 2481477043 + ... + 2481477076.

It is an arithmetic number, because the mean of its divisors is an integer number (22333293540).

Almost surely, 2^84370220023 is an apocalyptic number.

84370220023 is a deficient number, since it is larger than the sum of its proper divisors (4962954137).

84370220023 is a wasteful number, since it uses less digits than its factorization.

84370220023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962954136.

The product of its (nonzero) digits is 16128, while the sum is 31.

The spelling of 84370220023 in words is "eighty-four billion, three hundred seventy million, two hundred twenty thousand, twenty-three".