512011025263623 has 4 divisors (see below), whose sum is σ = 682681367018168. Its totient is φ = 341340683509080.

The previous prime is 512011025263609. The next prime is 512011025263693. The reversal of 512011025263623 is 326362520110215.

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

It is not a de Polignac number, because 512011025263623 - 2²² = 512011021069319 is a prime.

It is a super-2 number, since 2×512011025263623² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512011025263693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85335170877268 + ... + 85335170877273.

It is an arithmetic number, because the mean of its divisors is an integer number (170670341754542).

Almost surely, 2^{512011025263623} is an apocalyptic number.

512011025263623 is a deficient number, since it is larger than the sum of its proper divisors (170670341754545).

512011025263623 is a wasteful number, since it uses less digits than its factorization.

512011025263623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170670341754544.

The product of its (nonzero) digits is 129600, while the sum is 39.

Adding to 512011025263623 its reverse (326362520110215), we get a palindrome (838373545373838).

The spelling of 512011025263623 in words is "five hundred twelve trillion, eleven billion, twenty-five million, two hundred sixty-three thousand, six hundred twenty-three".