84742476340 has 12 divisors (see below), whose sum is σ = 177959200356. Its totient is φ = 33896990528.

The previous prime is 84742476281. The next prime is 84742476349. The reversal of 84742476340 is 4367424748.

It can be written as a sum of positive squares in 2 ways, for example, as 8670216996 + 76072259344 = 93114^2 + 275812^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84742476349) 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, 2118561889 + ... + 2118561928.

It is an arithmetic number, because the mean of its divisors is an integer number (14829933363).

Almost surely, 2^84742476340 is an apocalyptic number.

It is an amenable number.

84742476340 is an abundant number, since it is smaller than the sum of its proper divisors (93216724016).

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

84742476340 is a wasteful number, since it uses less digits than its factorization.

84742476340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237123826 (or 4237123824 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 49.

The spelling of 84742476340 in words is "eighty-four billion, seven hundred forty-two million, four hundred seventy-six thousand, three hundred forty".