74426959511 has 4 divisors (see below), whose sum is σ = 74486550000. Its totient is φ = 74367369024.

The previous prime is 74426959471. The next prime is 74426959513. The reversal of 74426959511 is 11595962447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11595962447 = 19 ⋅610313813.

It is a cyclic number.

It is not a de Polignac number, because 74426959511 - 2²⁶ = 74359850647 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 (74426959513) 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, 29793371 + ... + 29795868.

It is an arithmetic number, because the mean of its divisors is an integer number (18621637500).

Almost surely, 2^74426959511 is an apocalyptic number.

74426959511 is a deficient number, since it is larger than the sum of its proper divisors (59590489).

74426959511 is a wasteful number, since it uses less digits than its factorization.

74426959511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59590488.

The product of its digits is 2721600, while the sum is 53.

The spelling of 74426959511 in words is "seventy-four billion, four hundred twenty-six million, nine hundred fifty-nine thousand, five hundred eleven".