84451963088940 has 48 divisors (see below), whose sum is σ = 236535852910560. Its totient is φ = 22513822894080.

The previous prime is 84451963088917. The next prime is 84451963088959. The reversal of 84451963088940 is 4988036915448.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209190295 + ... + 209593614.

It is an arithmetic number, because the mean of its divisors is an integer number (4927830268970).

Almost surely, 2^{84451963088940} is an apocalyptic number.

It is an amenable number.

84451963088940 is an abundant number, since it is smaller than the sum of its proper divisors (152083889821620).

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

84451963088940 is a wasteful number, since it uses less digits than its factorization.

84451963088940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418787282 (or 418787280 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 69.

The spelling of 84451963088940 in words is "eighty-four trillion, four hundred fifty-one billion, nine hundred sixty-three million, eighty-eight thousand, nine hundred forty".