51476349457 has 8 divisors (see below), whose sum is σ = 57347657640. Its totient is φ = 45878125440.

The previous prime is 51476349439. The next prime is 51476349467. The reversal of 51476349457 is 75494367415.

51476349457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 226884²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 51476349456 = 1^2 + 226884^2 .

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 51476349457 - 2¹⁹ = 51475825169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51476349398 and 51476349407.

It is not an unprimeable number, because it can be changed into a prime (51476349437) 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, 68270644 + ... + 68271397.

It is an arithmetic number, because the mean of its divisors is an integer number (7168457205).

Almost surely, 2^51476349457 is an apocalyptic number.

It is an amenable number.

51476349457 is a deficient number, since it is larger than the sum of its proper divisors (5871308183).

51476349457 is a wasteful number, since it uses less digits than its factorization.

51476349457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136542083.

The product of its digits is 12700800, while the sum is 55.

The spelling of 51476349457 in words is "fifty-one billion, four hundred seventy-six million, three hundred forty-nine thousand, four hundred fifty-seven".