431726071503 has 64 divisors (see below), whose sum is σ = 626135731200. Its totient is φ = 263885783040.

The previous prime is 431726071489. The next prime is 431726071507. The reversal of 431726071503 is 305170627134.

It is not a de Polignac number, because 431726071503 - 2¹⁶ = 431726005967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431726071507) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 77520303 + ... + 77525871.

It is an arithmetic number, because the mean of its divisors is an integer number (9783370800).

Almost surely, 2^431726071503 is an apocalyptic number.

431726071503 is a deficient number, since it is larger than the sum of its proper divisors (194409659697).

431726071503 is a wasteful number, since it uses less digits than its factorization.

431726071503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6112.

The product of its (nonzero) digits is 105840, while the sum is 39.

Adding to 431726071503 its reverse (305170627134), we get a palindrome (736896698637).

The spelling of 431726071503 in words is "four hundred thirty-one billion, seven hundred twenty-six million, seventy-one thousand, five hundred three".