513123365531426 has 32 divisors (see below), whose sum is σ = 855935942550528. Its totient is φ = 229104673715520.

The previous prime is 513123365531423. The next prime is 513123365531459. The reversal of 513123365531426 is 624135563321315.

It is not an unprimeable number, because it can be changed into a prime (513123365531423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111551390 + ... + 116060153.

It is an arithmetic number, because the mean of its divisors is an integer number (26747998204704).

Almost surely, 2^{513123365531426} is an apocalyptic number.

513123365531426 is a deficient number, since it is larger than the sum of its proper divisors (342812577019102).

513123365531426 is a wasteful number, since it uses less digits than its factorization.

513123365531426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227614386.

The product of its digits is 5832000, while the sum is 50.

The spelling of 513123365531426 in words is "five hundred thirteen trillion, one hundred twenty-three billion, three hundred sixty-five million, five hundred thirty-one thousand, four hundred twenty-six".