91749547354 has 8 divisors (see below), whose sum is σ = 138614424480. Its totient is φ = 45544739196.

The previous prime is 91749547303. The next prime is 91749547429. The reversal of 91749547354 is 45374594719.

It is a happy number.

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

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, 165016894 + ... + 165017449.

It is an arithmetic number, because the mean of its divisors is an integer number (17326803060).

Almost surely, 2^91749547354 is an apocalyptic number.

91749547354 is a deficient number, since it is larger than the sum of its proper divisors (46864877126).

91749547354 is a wasteful number, since it uses less digits than its factorization.

91749547354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330034484.

The product of its digits is 19051200, while the sum is 58.

The spelling of 91749547354 in words is "ninety-one billion, seven hundred forty-nine million, five hundred forty-seven thousand, three hundred fifty-four".