513054140364466 has 4 divisors (see below), whose sum is σ = 769581210546702. Its totient is φ = 256527070182232.

The previous prime is 513054140364463. The next prime is 513054140364487. The reversal of 513054140364466 is 664463041450315.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 498750427263841 + 14303713100625 = 22332721^2 + 3782025^2 .

It is a super-2 number, since 2×513054140364466² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (513054140364461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128263535091115 + ... + 128263535091118.

Almost surely, 2^{513054140364466} is an apocalyptic number.

513054140364466 is a deficient number, since it is larger than the sum of its proper divisors (256527070182236).

513054140364466 is a wasteful number, since it uses less digits than its factorization.

513054140364466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256527070182235.

The product of its (nonzero) digits is 12441600, while the sum is 52.

The spelling of 513054140364466 in words is "five hundred thirteen trillion, fifty-four billion, one hundred forty million, three hundred sixty-four thousand, four hundred sixty-six".