91929900101 has 8 divisors (see below), whose sum is σ = 100869383160. Its totient is φ = 83257267392.

The previous prime is 91929900091. The next prime is 91929900137. The reversal of 91929900101 is 10100992919.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 891321025 + 91038579076 = 29855^2 + 301726^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91929900101 - 2³⁰ = 90856158277 is a prime.

It is a super-2 number, since 2×91929900101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91929900401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66711866 + ... + 66713243.

It is an arithmetic number, because the mean of its divisors is an integer number (12608672895).

Almost surely, 2^91929900101 is an apocalyptic number.

It is an amenable number.

91929900101 is a deficient number, since it is larger than the sum of its proper divisors (8939483059).

91929900101 is a wasteful number, since it uses less digits than its factorization.

91929900101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133425175.

The product of its (nonzero) digits is 13122, while the sum is 41.

The spelling of 91929900101 in words is "ninety-one billion, nine hundred twenty-nine million, nine hundred thousand, one hundred one".