424913755391 has 4 divisors (see below), whose sum is σ = 424915380792. Its totient is φ = 424912129992.

The previous prime is 424913755367. The next prime is 424913755411. The reversal of 424913755391 is 193557319424.

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-424913755391 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 (424913755361) 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, 321680 + ... + 976373.

It is an arithmetic number, because the mean of its divisors is an integer number (106228845198).

Almost surely, 2^424913755391 is an apocalyptic number.

424913755391 is a deficient number, since it is larger than the sum of its proper divisors (1625401).

424913755391 is a wasteful number, since it uses less digits than its factorization.

424913755391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625400.

The product of its digits is 4082400, while the sum is 53.

The spelling of 424913755391 in words is "four hundred twenty-four billion, nine hundred thirteen million, seven hundred fifty-five thousand, three hundred ninety-one".