84810247997 has 16 divisors (see below), whose sum is σ = 90428448000. Its totient is φ = 79308051264.

The previous prime is 84810247993. The next prime is 84810248059. The reversal of 84810247997 is 79974201848.

It is a cyclic number.

It is not a de Polignac number, because 84810247997 - 2² = 84810247993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84810247993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9405263 + ... + 9414275.

It is an arithmetic number, because the mean of its divisors is an integer number (5651778000).

Almost surely, 2^84810247997 is an apocalyptic number.

It is an amenable number.

84810247997 is a deficient number, since it is larger than the sum of its proper divisors (5618200003).

84810247997 is a wasteful number, since it uses less digits than its factorization.

84810247997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15380.

The product of its (nonzero) digits is 8128512, while the sum is 59.

The spelling of 84810247997 in words is "eighty-four billion, eight hundred ten million, two hundred forty-seven thousand, nine hundred ninety-seven".