91829991021101 has 8 divisors (see below), whose sum is σ = 92568890639808. Its totient is φ = 91091665756000.

The previous prime is 91829991021077. The next prime is 91829991021127. The reversal of 91829991021101 is 10112019992819.

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

It is a cyclic number.

It is not a de Polignac number, because 91829991021101 - 2³⁰ = 91828917279277 is a prime.

It is a super-4 number, since 4×91829991021101⁴ (a number of 57 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91829991041101) 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, 143267345 + ... + 143906886.

It is an arithmetic number, because the mean of its divisors is an integer number (11571111329976).

Almost surely, 2^{91829991021101} is an apocalyptic number.

It is an amenable number.

91829991021101 is a deficient number, since it is larger than the sum of its proper divisors (738899618707).

91829991021101 is a wasteful number, since it uses less digits than its factorization.

91829991021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287176803.

The product of its (nonzero) digits is 209952, while the sum is 53.

The spelling of 91829991021101 in words is "ninety-one trillion, eight hundred twenty-nine billion, nine hundred ninety-one million, twenty-one thousand, one hundred one".