91527042747 has 16 divisors (see below), whose sum is σ = 147673884672. Its totient is φ = 49224627840.

The previous prime is 91527042707. The next prime is 91527042751. The reversal of 91527042747 is 74724072519.

It is not a de Polignac number, because 91527042747 - 2⁶ = 91527042683 is a prime.

It is a super-2 number, since 2×91527042747² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 91527042696 and 91527042705.

It is not an unprimeable number, because it can be changed into a prime (91527042707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128188779 + ... + 128189492.

It is an arithmetic number, because the mean of its divisors is an integer number (9229617792).

Almost surely, 2^91527042747 is an apocalyptic number.

91527042747 is a deficient number, since it is larger than the sum of its proper divisors (56146841925).

91527042747 is a wasteful number, since it uses less digits than its factorization.

91527042747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256378298.

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 91527042747 in words is "ninety-one billion, five hundred twenty-seven million, forty-two thousand, seven hundred forty-seven".