97031094638 has 4 divisors (see below), whose sum is σ = 145546641960. Its totient is φ = 48515547318.

The previous prime is 97031094637. The next prime is 97031094647. The reversal of 97031094638 is 83649013079.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83649013079 = 139 ⋅601791461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97031094637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24257773658 + ... + 24257773661.

It is an arithmetic number, because the mean of its divisors is an integer number (36386660490).

Almost surely, 2^97031094638 is an apocalyptic number.

97031094638 is a deficient number, since it is larger than the sum of its proper divisors (48515547322).

97031094638 is a wasteful number, since it uses less digits than its factorization.

97031094638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48515547321.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 97031094638 in words is "ninety-seven billion, thirty-one million, ninety-four thousand, six hundred thirty-eight".