51077672269 has 8 divisors (see below), whose sum is σ = 58242413880. Its totient is φ = 44375172096.

The previous prime is 51077672267. The next prime is 51077672297. The reversal of 51077672269 is 96227677015.

It can be written as a sum of positive squares in 4 ways, for example, as 15228794025 + 35848878244 = 123405^2 + 189338^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51077672269 - 2¹ = 51077672267 is a prime.

It is a super-2 number, since 2×51077672269² (a number of 22 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 (51077672267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115560124 + ... + 115560565.

It is an arithmetic number, because the mean of its divisors is an integer number (7280301735).

Almost surely, 2^51077672269 is an apocalyptic number.

It is an amenable number.

51077672269 is a deficient number, since it is larger than the sum of its proper divisors (7164741611).

51077672269 is a wasteful number, since it uses less digits than its factorization.

51077672269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231120719.

The product of its (nonzero) digits is 2222640, while the sum is 52.

The spelling of 51077672269 in words is "fifty-one billion, seventy-seven million, six hundred seventy-two thousand, two hundred sixty-nine".