97508746721 has 8 divisors (see below), whose sum is σ = 104498211264. Its totient is φ = 90748445040.

The previous prime is 97508746717. The next prime is 97508746729. The reversal of 97508746721 is 12764780579.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97508746721 - 2² = 97508746717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (97508746729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57289835 + ... + 57291536.

It is an arithmetic number, because the mean of its divisors is an integer number (13062276408).

Almost surely, 2^97508746721 is an apocalyptic number.

It is an amenable number.

97508746721 is a deficient number, since it is larger than the sum of its proper divisors (6989464543).

97508746721 is a wasteful number, since it uses less digits than its factorization.

97508746721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114581431.

The product of its (nonzero) digits is 5927040, while the sum is 56.

The spelling of 97508746721 in words is "ninety-seven billion, five hundred eight million, seven hundred forty-six thousand, seven hundred twenty-one".