91048443130 has 8 divisors (see below), whose sum is σ = 163887197652. Its totient is φ = 36419377248.

The previous prime is 91048443113. The next prime is 91048443133. The reversal of 91048443130 is 3134484019.

It can be written as a sum of positive squares in 2 ways, for example, as 84557079369 + 6491363761 = 290787^2 + 80569^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 91048443130.

It is not an unprimeable number, because it can be changed into a prime (91048443133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4552422147 + ... + 4552422166.

Almost surely, 2^91048443130 is an apocalyptic number.

91048443130 is a deficient number, since it is larger than the sum of its proper divisors (72838754522).

91048443130 is a wasteful number, since it uses less digits than its factorization.

91048443130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9104844320.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 91048443130 in words is "ninety-one billion, forty-eight million, four hundred forty-three thousand, one hundred thirty".