51543534354 has 32 divisors (see below), whose sum is σ = 112354409664. Its totient is φ = 15668468160.

The previous prime is 51543534347. The next prime is 51543534407. The reversal of 51543534354 is 45343534515.

It is a happy number.

It is a super-3 number, since 3×51543534354³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3974337 + ... + 3987284.

It is an arithmetic number, because the mean of its divisors is an integer number (3511075302).

Almost surely, 2^51543534354 is an apocalyptic number.

51543534354 is an abundant number, since it is smaller than the sum of its proper divisors (60810875310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51543534354 is a wasteful number, since it uses less digits than its factorization.

51543534354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7961722.

The product of its digits is 1080000, while the sum is 42.

The spelling of 51543534354 in words is "fifty-one billion, five hundred forty-three million, five hundred thirty-four thousand, three hundred fifty-four".