91464551005 has 16 divisors (see below), whose sum is σ = 110741483520. Its totient is φ = 72516874752.

The previous prime is 91464550999. The next prime is 91464551027. The reversal of 91464551005 is 50015546419.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 91464551005 - 2¹¹ = 91464548957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512392 + ... + 667438.

It is an arithmetic number, because the mean of its divisors is an integer number (6921342720).

Almost surely, 2^91464551005 is an apocalyptic number.

It is an amenable number.

91464551005 is a deficient number, since it is larger than the sum of its proper divisors (19276932515).

91464551005 is a wasteful number, since it uses less digits than its factorization.

91464551005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156108.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 91464551005 in words is "ninety-one billion, four hundred sixty-four million, five hundred fifty-one thousand, five".