91052918293 has 4 divisors (see below), whose sum is σ = 91293163840. Its totient is φ = 90812672748.

The previous prime is 91052918291. The next prime is 91052918387. The reversal of 91052918293 is 39281925019.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91052918293 - 2¹ = 91052918291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91052918291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120122205 + ... + 120122962.

It is an arithmetic number, because the mean of its divisors is an integer number (22823290960).

Almost surely, 2^91052918293 is an apocalyptic number.

It is an amenable number.

91052918293 is a deficient number, since it is larger than the sum of its proper divisors (240245547).

91052918293 is a wasteful number, since it uses less digits than its factorization.

91052918293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240245546.

The product of its (nonzero) digits is 349920, while the sum is 49.

The spelling of 91052918293 in words is "ninety-one billion, fifty-two million, nine hundred eighteen thousand, two hundred ninety-three".