506478435701 has 4 divisors (see below), whose sum is σ = 578832497952. Its totient is φ = 434124373452.

The previous prime is 506478435599. The next prime is 506478435713. The reversal of 506478435701 is 107534874605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 107534874605 = 5 ⋅21506974921.

It is a de Polignac number, because none of the positive numbers 2^k-506478435701 is a prime.

It is a super-2 number, since 2×506478435701² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 506478435701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506478435791) 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, 36177031115 + ... + 36177031128.

It is an arithmetic number, because the mean of its divisors is an integer number (144708124488).

Almost surely, 2^506478435701 is an apocalyptic number.

It is an amenable number.

506478435701 is a deficient number, since it is larger than the sum of its proper divisors (72354062251).

506478435701 is an equidigital number, since it uses as much as digits as its factorization.

506478435701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72354062250.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 506478435701 in words is "five hundred six billion, four hundred seventy-eight million, four hundred thirty-five thousand, seven hundred one".