84003078492 has 36 divisors (see below), whose sum is σ = 212525703936. Its totient is φ = 27976684800.

The previous prime is 84003078479. The next prime is 84003078499. The reversal of 84003078492 is 29487030048.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×84003078492² (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 (84003078499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 972213 + ... + 1055084.

It is an arithmetic number, because the mean of its divisors is an integer number (5903491776).

Almost surely, 2^84003078492 is an apocalyptic number.

It is an amenable number.

84003078492 is an abundant number, since it is smaller than the sum of its proper divisors (128522625444).

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

84003078492 is a wasteful number, since it uses less digits than its factorization.

84003078492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028458 (or 2028453 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 84003078492 in words is "eighty-four billion, three million, seventy-eight thousand, four hundred ninety-two".