91841914058 has 4 divisors (see below), whose sum is σ = 137762871090. Its totient is φ = 45920957028.

The previous prime is 91841914057. The next prime is 91841914063. The reversal of 91841914058 is 85041914819.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85041914819 = 193 ⋅440631683.

It can be written as a sum of positive squares in only one way, i.e., 86887584289 + 4954329769 = 294767^2 + 70387^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91841913997 and 91841914015.

It is not an unprimeable number, because it can be changed into a prime (91841914057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22960478513 + ... + 22960478516.

Almost surely, 2^91841914058 is an apocalyptic number.

91841914058 is a deficient number, since it is larger than the sum of its proper divisors (45920957032).

91841914058 is a wasteful number, since it uses less digits than its factorization.

91841914058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45920957031.

The product of its (nonzero) digits is 414720, while the sum is 50.

The spelling of 91841914058 in words is "ninety-one billion, eight hundred forty-one million, nine hundred fourteen thousand, fifty-eight".