91741927904890 has 64 divisors (see below), whose sum is σ = 183251875184640. Its totient is φ = 32928071123520.

The previous prime is 91741927904867. The next prime is 91741927904897. The reversal of 91741927904890 is 9840972914719.

It is not an unprimeable number, because it can be changed into a prime (91741927904897) 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, 165424012 + ... + 165977671.

It is an arithmetic number, because the mean of its divisors is an integer number (2863310549760).

Almost surely, 2^{91741927904890} is an apocalyptic number.

91741927904890 is a deficient number, since it is larger than the sum of its proper divisors (91509947279750).

91741927904890 is a wasteful number, since it uses less digits than its factorization.

91741927904890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331401787.

The product of its (nonzero) digits is 82301184, while the sum is 70.

The spelling of 91741927904890 in words is "ninety-one trillion, seven hundred forty-one billion, nine hundred twenty-seven million, nine hundred four thousand, eight hundred ninety".