91930130479 has 8 divisors (see below), whose sum is σ = 100292200272. Its totient is φ = 83568858240.

The previous prime is 91930130443. The next prime is 91930130483. The reversal of 91930130479 is 97403103919.

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

It is a cyclic number.

It is not a de Polignac number, because 91930130479 - 2¹¹ = 91930128431 is a prime.

It is a super-2 number, since 2×91930130479² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91930130429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55837 + ... + 432409.

It is an arithmetic number, because the mean of its divisors is an integer number (12536525034).

Almost surely, 2^91930130479 is an apocalyptic number.

91930130479 is a deficient number, since it is larger than the sum of its proper divisors (8362069793).

91930130479 is a wasteful number, since it uses less digits than its factorization.

91930130479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398777.

The product of its (nonzero) digits is 183708, while the sum is 46.

The spelling of 91930130479 in words is "ninety-one billion, nine hundred thirty million, one hundred thirty thousand, four hundred seventy-nine".