84041965021 has 8 divisors (see below), whose sum is σ = 96065727680. Its totient is φ = 72022644288.

The previous prime is 84041964973. The next prime is 84041965037. The reversal of 84041965021 is 12056914048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84041965021 - 2¹¹ = 84041962973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84041965121) 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, 1069836 + ... + 1145701.

It is an arithmetic number, because the mean of its divisors is an integer number (12008215960).

Almost surely, 2^84041965021 is an apocalyptic number.

It is an amenable number.

84041965021 is a deficient number, since it is larger than the sum of its proper divisors (12023762659).

84041965021 is a wasteful number, since it uses less digits than its factorization.

84041965021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220963.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 84041965021 in words is "eighty-four billion, forty-one million, nine hundred sixty-five thousand, twenty-one".