97578334859 has 4 divisors (see below), whose sum is σ = 97744567704. Its totient is φ = 97412102016.

The previous prime is 97578334823. The next prime is 97578334871. The reversal of 97578334859 is 95843387579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95843387579 = 125303 ⋅764893.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97578334859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97578334559) 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, 83115542 + ... + 83116715.

It is an arithmetic number, because the mean of its divisors is an integer number (24436141926).

Almost surely, 2^97578334859 is an apocalyptic number.

97578334859 is a deficient number, since it is larger than the sum of its proper divisors (166232845).

97578334859 is a wasteful number, since it uses less digits than its factorization.

97578334859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166232844.

The product of its digits is 228614400, while the sum is 68.

The spelling of 97578334859 in words is "ninety-seven billion, five hundred seventy-eight million, three hundred thirty-four thousand, eight hundred fifty-nine".