501354399011 has 4 divisors (see below), whose sum is σ = 506221917552. Its totient is φ = 496486880472.

The previous prime is 501354398971. The next prime is 501354399023. The reversal of 501354399011 is 110993453105.

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-501354399011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 501354399011.

It is not an unprimeable number, because it can be changed into a prime (501354309011) 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, 2433759116 + ... + 2433759321.

It is an arithmetic number, because the mean of its divisors is an integer number (126555479388).

Almost surely, 2^501354399011 is an apocalyptic number.

501354399011 is a deficient number, since it is larger than the sum of its proper divisors (4867518541).

501354399011 is a wasteful number, since it uses less digits than its factorization.

501354399011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4867518540.

The product of its (nonzero) digits is 72900, while the sum is 41.

The spelling of 501354399011 in words is "five hundred one billion, three hundred fifty-four million, three hundred ninety-nine thousand, eleven".