513215112454 has 32 divisors (see below), whose sum is σ = 889265622816. Its totient is φ = 219542776320.

The previous prime is 513215112451. The next prime is 513215112463. The reversal of 513215112454 is 454211512315.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513215112451) 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, 7158972 + ... + 7230304.

It is an arithmetic number, because the mean of its divisors is an integer number (27789550713).

Almost surely, 2^513215112454 is an apocalyptic number.

513215112454 is a deficient number, since it is larger than the sum of its proper divisors (376050510362).

513215112454 is a wasteful number, since it uses less digits than its factorization.

513215112454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90600.

The product of its digits is 24000, while the sum is 34.

Adding to 513215112454 its reverse (454211512315), we get a palindrome (967426624769).

The spelling of 513215112454 in words is "five hundred thirteen billion, two hundred fifteen million, one hundred twelve thousand, four hundred fifty-four".