51061543413654 has 16 divisors (see below), whose sum is σ = 104613893823600. Its totient is φ = 16605379971840.

The previous prime is 51061543413623. The next prime is 51061543413659. The reversal of 51061543413654 is 45631434516015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51061543413659) 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, 103783624579 + ... + 103783625070.

It is an arithmetic number, because the mean of its divisors is an integer number (6538368363975).

Almost surely, 2^{51061543413654} is an apocalyptic number.

51061543413654 is an abundant number, since it is smaller than the sum of its proper divisors (53552350409946).

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

51061543413654 is a wasteful number, since it uses less digits than its factorization.

51061543413654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207567249695.

The product of its (nonzero) digits is 2592000, while the sum is 48.

Adding to 51061543413654 its reverse (45631434516015), we get a palindrome (96692977929669).

The spelling of 51061543413654 in words is "fifty-one trillion, sixty-one billion, five hundred forty-three million, four hundred thirteen thousand, six hundred fifty-four".