91938055627 has 32 divisors (see below), whose sum is σ = 106388352000. Its totient is φ = 78572332800.

The previous prime is 91938055577. The next prime is 91938055633. The reversal of 91938055627 is 72655083919.

It is a cyclic number.

It is not a de Polignac number, because 91938055627 - 2¹¹ = 91938053579 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91938055697) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34419502 + ... + 34422172.

It is an arithmetic number, because the mean of its divisors is an integer number (3324636000).

Almost surely, 2^91938055627 is an apocalyptic number.

91938055627 is a deficient number, since it is larger than the sum of its proper divisors (14450296373).

91938055627 is a wasteful number, since it uses less digits than its factorization.

91938055627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907.

The product of its (nonzero) digits is 4082400, while the sum is 55.

The spelling of 91938055627 in words is "ninety-one billion, nine hundred thirty-eight million, fifty-five thousand, six hundred twenty-seven".