84747071742 has 32 divisors (see below), whose sum is σ = 173145848832. Its totient is φ = 27640722144.

The previous prime is 84747071741. The next prime is 84747071749. The reversal of 84747071742 is 24717074748.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84747071741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1094223 + ... + 1169109.

It is an arithmetic number, because the mean of its divisors is an integer number (5410807776).

Almost surely, 2^84747071742 is an apocalyptic number.

84747071742 is an abundant number, since it is smaller than the sum of its proper divisors (88398777090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84747071742 is a wasteful number, since it uses less digits than its factorization.

84747071742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78952.

The product of its (nonzero) digits is 2458624, while the sum is 51.

The spelling of 84747071742 in words is "eighty-four billion, seven hundred forty-seven million, seventy-one thousand, seven hundred forty-two".