84940309012 has 24 divisors (see below), whose sum is σ = 161154189000. Its totient is φ = 38940107136.

The previous prime is 84940308997. The next prime is 84940309019. The reversal of 84940309012 is 21090304948.

It can be written as a sum of positive squares in 4 ways, for example, as 861187716 + 84079121296 = 29346^2 + 289964^2 .

It is a super-2 number, since 2×84940309012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84940309019) 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, 5473687 + ... + 5489182.

It is an arithmetic number, because the mean of its divisors is an integer number (6714757875).

Almost surely, 2^84940309012 is an apocalyptic number.

It is an amenable number.

84940309012 is a deficient number, since it is larger than the sum of its proper divisors (76213879988).

84940309012 is a wasteful number, since it uses less digits than its factorization.

84940309012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10963035 (or 10963033 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 84940309012 in words is "eighty-four billion, nine hundred forty million, three hundred nine thousand, twelve".