91347905630 has 16 divisors (see below), whose sum is σ = 164626033824. Its totient is φ = 36494761440.

The previous prime is 91347905599. The next prime is 91347905641. The reversal of 91347905630 is 3650974319.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5541461 + ... + 5557920.

It is an arithmetic number, because the mean of its divisors is an integer number (10289127114).

Almost surely, 2^91347905630 is an apocalyptic number.

91347905630 is a deficient number, since it is larger than the sum of its proper divisors (73278128194).

91347905630 is a wasteful number, since it uses less digits than its factorization.

91347905630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100211.

The product of its (nonzero) digits is 612360, while the sum is 47.

The spelling of 91347905630 in words is "ninety-one billion, three hundred forty-seven million, nine hundred five thousand, six hundred thirty".