51413458409 has 16 divisors (see below), whose sum is σ = 53174430720. Its totient is φ = 49684864320.

The previous prime is 51413458351. The next prime is 51413458471. The reversal of 51413458409 is 90485431415.

It is a cyclic number.

It is not a de Polignac number, because 51413458409 - 2⁸ = 51413458153 is a prime.

It is a super-2 number, since 2×51413458409² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51413458409.

It is not an unprimeable number, because it can be changed into a prime (51413451409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1748144 + ... + 1777310.

It is an arithmetic number, because the mean of its divisors is an integer number (3323401920).

Almost surely, 2^51413458409 is an apocalyptic number.

It is an amenable number.

51413458409 is a deficient number, since it is larger than the sum of its proper divisors (1760972311).

51413458409 is a wasteful number, since it uses less digits than its factorization.

51413458409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29720.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 51413458409 in words is "fifty-one billion, four hundred thirteen million, four hundred fifty-eight thousand, four hundred nine".