91445211254419 has 32 divisors (see below), whose sum is σ = 101775896271360. Its totient is φ = 81454991904000.

The previous prime is 91445211254417. The next prime is 91445211254459.

91445211254419 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 91445211254419 - 2¹ = 91445211254417 is a prime.

It is a super-2 number, since 2×91445211254419² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91445211254417) 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, 2491880479 + ... + 2491917175.

It is an arithmetic number, because the mean of its divisors is an integer number (3180496758480).

Almost surely, 2^{91445211254419} is an apocalyptic number.

91445211254419 is a deficient number, since it is larger than the sum of its proper divisors (10330685016941).

91445211254419 is a wasteful number, since it uses less digits than its factorization.

91445211254419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42331.

The product of its digits is 2073600, while the sum is 52.

The spelling of 91445211254419 in words is "ninety-one trillion, four hundred forty-five billion, two hundred eleven million, two hundred fifty-four thousand, four hundred nineteen".