91282769423 has 4 divisors (see below), whose sum is σ = 92779208328. Its totient is φ = 89786330520.

The previous prime is 91282769411. The next prime is 91282769437. The reversal of 91282769423 is 32496728219.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32496728219 = 3469 ⋅9367751.

It is a cyclic number.

It is not a de Polignac number, because 91282769423 - 2³⁴ = 74102900239 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 (91282769483) 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, 748219361 + ... + 748219482.

It is an arithmetic number, because the mean of its divisors is an integer number (23194802082).

Almost surely, 2^91282769423 is an apocalyptic number.

91282769423 is a deficient number, since it is larger than the sum of its proper divisors (1496438905).

91282769423 is a wasteful number, since it uses less digits than its factorization.

91282769423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496438904.

The product of its digits is 2612736, while the sum is 53.

The spelling of 91282769423 in words is "ninety-one billion, two hundred eighty-two million, seven hundred sixty-nine thousand, four hundred twenty-three".