97634443679 has 4 divisors (see below), whose sum is σ = 97670513784. Its totient is φ = 97598373576.

The previous prime is 97634443649. The next prime is 97634443681.

97634443679 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 97634443679 - 2²⁴ = 97617666463 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 (97634443619) 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, 18030992 + ... + 18036405.

It is an arithmetic number, because the mean of its divisors is an integer number (24417628446).

Almost surely, 2^97634443679 is an apocalyptic number.

97634443679 is a deficient number, since it is larger than the sum of its proper divisors (36070105).

97634443679 is a wasteful number, since it uses less digits than its factorization.

97634443679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36070104.

The product of its digits is 82301184, while the sum is 62.

The spelling of 97634443679 in words is "ninety-seven billion, six hundred thirty-four million, four hundred forty-three thousand, six hundred seventy-nine".