51363373469 has 4 divisors (see below), whose sum is σ = 51368706300. Its totient is φ = 51358040640.

The previous prime is 51363373463. The next prime is 51363373483. The reversal of 51363373469 is 96437336315.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2339656900 + 49023716569 = 48370^2 + 221413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51363373469 is a prime.

It is a super-2 number, since 2×51363373469² (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 (51363373463) 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, 2651942 + ... + 2671239.

It is an arithmetic number, because the mean of its divisors is an integer number (12842176575).

Almost surely, 2^51363373469 is an apocalyptic number.

It is an amenable number.

51363373469 is a deficient number, since it is larger than the sum of its proper divisors (5332831).

51363373469 is an equidigital number, since it uses as much as digits as its factorization.

51363373469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332830.

The product of its digits is 3674160, while the sum is 50.

The spelling of 51363373469 in words is "fifty-one billion, three hundred sixty-three million, three hundred seventy-three thousand, four hundred sixty-nine".