51005450451 has 8 divisors (see below), whose sum is σ = 68160784320. Its totient is φ = 33926875112.

The previous prime is 51005450401. The next prime is 51005450459. The reversal of 51005450451 is 15405450015.

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 51005450451 - 2¹⁸ = 51005188307 is a prime.

It is a super-2 number, since 2×51005450451² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51005450459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19188081 + ... + 19190738.

It is an arithmetic number, because the mean of its divisors is an integer number (8520098040).

Almost surely, 2^51005450451 is an apocalyptic number.

51005450451 is a deficient number, since it is larger than the sum of its proper divisors (17155333869).

51005450451 is a wasteful number, since it uses less digits than its factorization.

51005450451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38379265.

The product of its (nonzero) digits is 10000, while the sum is 30.

The spelling of 51005450451 in words is "fifty-one billion, five million, four hundred fifty thousand, four hundred fifty-one".