511276134197 has 4 divisors (see below), whose sum is σ = 533505531360. Its totient is φ = 489046737036.

The previous prime is 511276134191. The next prime is 511276134203. The reversal of 511276134197 is 791431672115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (511276134191) and next prime (511276134203).

It is a cyclic number.

It is not a de Polignac number, because 511276134197 - 2²⁴ = 511259356981 is a prime.

It is a super-2 number, since 2×511276134197² (a number of 24 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 (511276134191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11114698547 + ... + 11114698592.

It is an arithmetic number, because the mean of its divisors is an integer number (133376382840).

Almost surely, 2^511276134197 is an apocalyptic number.

It is an amenable number.

511276134197 is a deficient number, since it is larger than the sum of its proper divisors (22229397163).

511276134197 is a wasteful number, since it uses less digits than its factorization.

511276134197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22229397162.

The product of its digits is 317520, while the sum is 47.

The spelling of 511276134197 in words is "five hundred eleven billion, two hundred seventy-six million, one hundred thirty-four thousand, one hundred ninety-seven".