97824842879 has 4 divisors (see below), whose sum is σ = 102973518840. Its totient is φ = 92676166920.

The previous prime is 97824842861. The next prime is 97824842911.

97824842879 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97824842879 - 2⁸ = 97824842623 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 (97824842579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2574337952 + ... + 2574337989.

It is an arithmetic number, because the mean of its divisors is an integer number (25743379710).

Almost surely, 2^97824842879 is an apocalyptic number.

97824842879 is a deficient number, since it is larger than the sum of its proper divisors (5148675961).

97824842879 is a wasteful number, since it uses less digits than its factorization.

97824842879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5148675960.

The product of its digits is 130056192, while the sum is 68.

The spelling of 97824842879 in words is "ninety-seven billion, eight hundred twenty-four million, eight hundred forty-two thousand, eight hundred seventy-nine".