51266435117 has 8 divisors (see below), whose sum is σ = 51366886560. Its totient is φ = 51166052080.

The previous prime is 51266435083. The next prime is 51266435147. The reversal of 51266435117 is 71153466215.

It is a happy number.

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 51266435117 - 2²⁶ = 51199326253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51266435147) 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, 1637234 + ... + 1668252.

It is an arithmetic number, because the mean of its divisors is an integer number (6420860820).

Almost surely, 2^51266435117 is an apocalyptic number.

It is an amenable number.

51266435117 is a deficient number, since it is larger than the sum of its proper divisors (100451443).

51266435117 is a wasteful number, since it uses less digits than its factorization.

51266435117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34203.

The product of its digits is 151200, while the sum is 41.

The spelling of 51266435117 in words is "fifty-one billion, two hundred sixty-six million, four hundred thirty-five thousand, one hundred seventeen".