96781607291 has 4 divisors (see below), whose sum is σ = 102474643032. Its totient is φ = 91088571552.

The previous prime is 96781607249. The next prime is 96781607303. The reversal of 96781607291 is 19270618769.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-96781607291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (96781607201) 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, 2846517845 + ... + 2846517878.

It is an arithmetic number, because the mean of its divisors is an integer number (25618660758).

Almost surely, 2^96781607291 is an apocalyptic number.

96781607291 is a deficient number, since it is larger than the sum of its proper divisors (5693035741).

96781607291 is a wasteful number, since it uses less digits than its factorization.

96781607291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5693035740.

The product of its (nonzero) digits is 2286144, while the sum is 56.

The spelling of 96781607291 in words is "ninety-six billion, seven hundred eighty-one million, six hundred seven thousand, two hundred ninety-one".