91214342044 has 24 divisors (see below), whose sum is σ = 193159784160. Its totient is φ = 36792339456.

The previous prime is 91214342041. The next prime is 91214342069. The reversal of 91214342044 is 44024341219.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91214342041) 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, 95812909 + ... + 95813860.

It is an arithmetic number, because the mean of its divisors is an integer number (8048324340).

Almost surely, 2^91214342044 is an apocalyptic number.

It is an amenable number.

91214342044 is an abundant number, since it is smaller than the sum of its proper divisors (101945442116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91214342044 is a wasteful number, since it uses less digits than its factorization.

91214342044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191626797 (or 191626795 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 91214342044 in words is "ninety-one billion, two hundred fourteen million, three hundred forty-two thousand, forty-four".