91429270434 has 12 divisors (see below), whose sum is σ = 198096752646. Its totient is φ = 30476423472.

The previous prime is 91429270421. The next prime is 91429270501. The reversal of 91429270434 is 43407292419.

91429270434 is a `hidden beast` number, since 9 + 142 + 9 + 2 + 70 + 434 = 666.

It can be written as a sum of positive squares in only one way, i.e., 54617092209 + 36812178225 = 233703^2 + 191865^2 .

It is a super-2 number, since 2×91429270434² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91429270434.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2539701939 + ... + 2539701974.

Almost surely, 2^91429270434 is an apocalyptic number.

91429270434 is an abundant number, since it is smaller than the sum of its proper divisors (106667482212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91429270434 is a wasteful number, since it uses less digits than its factorization.

91429270434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5079403921 (or 5079403918 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 91429270434 in words is "ninety-one billion, four hundred twenty-nine million, two hundred seventy thousand, four hundred thirty-four".