84646976399 has 6 divisors (see below), whose sum is σ = 89336559960. Its totient is φ = 80191872036.

The previous prime is 84646976357. The next prime is 84646976423. The reversal of 84646976399 is 99367964648.

It is not a de Polignac number, because 84646976399 - 2³² = 80352009103 is a prime.

It is a super-2 number, since 2×84646976399² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84646976339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117239219 + ... + 117239940.

It is an arithmetic number, because the mean of its divisors is an integer number (14889426660).

Almost surely, 2^84646976399 is an apocalyptic number.

84646976399 is a deficient number, since it is larger than the sum of its proper divisors (4689583561).

84646976399 is a wasteful number, since it uses less digits than its factorization.

84646976399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234479197 (or 234479178 counting only the distinct ones).

The product of its digits is 423263232, while the sum is 71.

The spelling of 84646976399 in words is "eighty-four billion, six hundred forty-six million, nine hundred seventy-six thousand, three hundred ninety-nine".