513412243642 has 16 divisors (see below), whose sum is σ = 770697597600. Its totient is φ = 256513097232.

The previous prime is 513412243559. The next prime is 513412243651. The reversal of 513412243642 is 246342214315.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37959093 + ... + 37972615.

It is an arithmetic number, because the mean of its divisors is an integer number (48168599850).

Almost surely, 2^513412243642 is an apocalyptic number.

513412243642 is a deficient number, since it is larger than the sum of its proper divisors (257285353958).

513412243642 is a wasteful number, since it uses less digits than its factorization.

513412243642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26397.

The product of its digits is 138240, while the sum is 37.

Adding to 513412243642 its reverse (246342214315), we get a palindrome (759754457957).

The spelling of 513412243642 in words is "five hundred thirteen billion, four hundred twelve million, two hundred forty-three thousand, six hundred forty-two".