84617981001 has 12 divisors (see below), whose sum is σ = 123698575728. Its totient is φ = 55732324344.

The previous prime is 84617980963. The next prime is 84617981003. The reversal of 84617981001 is 10018971648.

It is a happy number.

It is not a de Polignac number, because 84617981001 - 2¹³ = 84617972809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84617981003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56637795 + ... + 56639288.

It is an arithmetic number, because the mean of its divisors is an integer number (10308214644).

Almost surely, 2^84617981001 is an apocalyptic number.

It is an amenable number.

84617981001 is a deficient number, since it is larger than the sum of its proper divisors (39080594727).

84617981001 is a wasteful number, since it uses less digits than its factorization.

84617981001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113277172 (or 113277169 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The spelling of 84617981001 in words is "eighty-four billion, six hundred seventeen million, nine hundred eighty-one thousand, one".