91129972210054 has 8 divisors (see below), whose sum is σ = 138425274243360. Its totient is φ = 44988214128936.

The previous prime is 91129972210049. The next prime is 91129972210061. The reversal of 91129972210054 is 45001227992119.

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

It is a junction number, because it is equal to n+sod(n) for n = 91129972209983 and 91129972210010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288385987849 + ... + 288385988164.

It is an arithmetic number, because the mean of its divisors is an integer number (17303159280420).

Almost surely, 2^{91129972210054} is an apocalyptic number.

91129972210054 is a deficient number, since it is larger than the sum of its proper divisors (47295302033306).

91129972210054 is a wasteful number, since it uses less digits than its factorization.

91129972210054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576771976094.

The product of its (nonzero) digits is 816480, while the sum is 52.

The spelling of 91129972210054 in words is "ninety-one trillion, one hundred twenty-nine billion, nine hundred seventy-two million, two hundred ten thousand, fifty-four".