511626642134 has 4 divisors (see below), whose sum is σ = 767439963204. Its totient is φ = 255813321066.

The previous prime is 511626642119. The next prime is 511626642151. The reversal of 511626642134 is 431246626115.

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

It is a junction number, because it is equal to n+sod(n) for n = 511626642091 and 511626642100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127906660532 + ... + 127906660535.

It is an arithmetic number, because the mean of its divisors is an integer number (191859990801).

Almost surely, 2^511626642134 is an apocalyptic number.

511626642134 is a deficient number, since it is larger than the sum of its proper divisors (255813321070).

511626642134 is a wasteful number, since it uses less digits than its factorization.

511626642134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255813321069.

The product of its digits is 207360, while the sum is 41.

The spelling of 511626642134 in words is "five hundred eleven billion, six hundred twenty-six million, six hundred forty-two thousand, one hundred thirty-four".