97179494894 has 4 divisors (see below), whose sum is σ = 145769242344. Its totient is φ = 48589747446.

The previous prime is 97179494851. The next prime is 97179494933. The reversal of 97179494894 is 49849497179.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24294873722 + ... + 24294873725.

It is an arithmetic number, because the mean of its divisors is an integer number (36442310586).

Almost surely, 2^97179494894 is an apocalyptic number.

97179494894 is a deficient number, since it is larger than the sum of its proper divisors (48589747450).

97179494894 is a wasteful number, since it uses less digits than its factorization.

97179494894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48589747449.

The product of its digits is 164602368, while the sum is 71.

The spelling of 97179494894 in words is "ninety-seven billion, one hundred seventy-nine million, four hundred ninety-four thousand, eight hundred ninety-four".