506426431363 has 4 divisors (see below), whose sum is σ = 507762649240. Its totient is φ = 505090213488.

The previous prime is 506426431321. The next prime is 506426431387. The reversal of 506426431363 is 363134624605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 363134624605 = 5 ⋅72626924921.

It is a cyclic number.

It is not a de Polignac number, because 506426431363 - 2²¹ = 506424334211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506426431463) 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, 668108370 + ... + 668109127.

It is an arithmetic number, because the mean of its divisors is an integer number (126940662310).

Almost surely, 2^506426431363 is an apocalyptic number.

506426431363 is a deficient number, since it is larger than the sum of its proper divisors (1336217877).

506426431363 is a wasteful number, since it uses less digits than its factorization.

506426431363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336217876.

The product of its (nonzero) digits is 933120, while the sum is 43.

The spelling of 506426431363 in words is "five hundred six billion, four hundred twenty-six million, four hundred thirty-one thousand, three hundred sixty-three".