51077040873 has 4 divisors (see below), whose sum is σ = 68102721168. Its totient is φ = 34051360580.

The previous prime is 51077040857. The next prime is 51077040887. The reversal of 51077040873 is 37804077015.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 51077040873 - 2⁴ = 51077040857 is a prime.

It is a super-3 number, since 3×51077040873³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (51077040823) 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, 8512840143 + ... + 8512840148.

It is an arithmetic number, because the mean of its divisors is an integer number (17025680292).

Almost surely, 2^51077040873 is an apocalyptic number.

It is an amenable number.

51077040873 is a deficient number, since it is larger than the sum of its proper divisors (17025680295).

51077040873 is a wasteful number, since it uses less digits than its factorization.

51077040873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17025680294.

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 51077040873 in words is "fifty-one billion, seventy-seven million, forty thousand, eight hundred seventy-three".