427750429599791 has 4 divisors (see below), whose sum is σ = 427861620253392. Its totient is φ = 427639238946192.

The previous prime is 427750429599781. The next prime is 427750429599859. The reversal of 427750429599791 is 197995924057724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427750429599791 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 (427750429599781) 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, 55595321030 + ... + 55595328723.

It is an arithmetic number, because the mean of its divisors is an integer number (106965405063348).

Almost surely, 2^{427750429599791} is an apocalyptic number.

427750429599791 is a deficient number, since it is larger than the sum of its proper divisors (111190653601).

427750429599791 is a wasteful number, since it uses less digits than its factorization.

427750429599791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111190653600.

The product of its (nonzero) digits is 3600676800, while the sum is 80.

The spelling of 427750429599791 in words is "four hundred twenty-seven trillion, seven hundred fifty billion, four hundred twenty-nine million, five hundred ninety-nine thousand, seven hundred ninety-one".