97635491255 has 4 divisors (see below), whose sum is σ = 117162589512. Its totient is φ = 78108393000.

The previous prime is 97635491251. The next prime is 97635491279. The reversal of 97635491255 is 55219453679.

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

It is not a de Polignac number, because 97635491255 - 2² = 97635491251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97635491255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97635491251) 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, 9763549121 + ... + 9763549130.

It is an arithmetic number, because the mean of its divisors is an integer number (29290647378).

Almost surely, 2^97635491255 is an apocalyptic number.

97635491255 is a deficient number, since it is larger than the sum of its proper divisors (19527098257).

97635491255 is a wasteful number, since it uses less digits than its factorization.

97635491255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19527098256.

The product of its digits is 10206000, while the sum is 56.

The spelling of 97635491255 in words is "ninety-seven billion, six hundred thirty-five million, four hundred ninety-one thousand, two hundred fifty-five".