97215763201 has 4 divisors (see below), whose sum is σ = 97248687172. Its totient is φ = 97182839232.

The previous prime is 97215763193. The next prime is 97215763279. The reversal of 97215763201 is 10236751279.

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

It can be written as a sum of positive squares in 2 ways, for example, as 91409475600 + 5806287601 = 302340^2 + 76199^2 .

It is a cyclic number.

It is not a de Polignac number, because 97215763201 - 2³ = 97215763193 is a prime.

It is a super-2 number, since 2×97215763201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97215764201) 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, 16457556 + ... + 16463461.

It is an arithmetic number, because the mean of its divisors is an integer number (24312171793).

Almost surely, 2^97215763201 is an apocalyptic number.

It is an amenable number.

97215763201 is a deficient number, since it is larger than the sum of its proper divisors (32923971).

97215763201 is a wasteful number, since it uses less digits than its factorization.

97215763201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32923970.

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 97215763201 in words is "ninety-seven billion, two hundred fifteen million, seven hundred sixty-three thousand, two hundred one".