97653987615 has 8 divisors (see below), whose sum is σ = 156246380208. Its totient is φ = 52082126720.

The previous prime is 97653987511. The next prime is 97653987617. The reversal of 97653987615 is 51678935679.

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

It is not a de Polignac number, because 97653987615 - 2⁹ = 97653987103 is a prime.

It is a super-2 number, since 2×97653987615² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97653987617) 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, 3255132906 + ... + 3255132935.

It is an arithmetic number, because the mean of its divisors is an integer number (19530797526).

Almost surely, 2^97653987615 is an apocalyptic number.

97653987615 is a deficient number, since it is larger than the sum of its proper divisors (58592392593).

97653987615 is a wasteful number, since it uses less digits than its factorization.

97653987615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6510265849.

The product of its digits is 85730400, while the sum is 66.

The spelling of 97653987615 in words is "ninety-seven billion, six hundred fifty-three million, nine hundred eighty-seven thousand, six hundred fifteen".