51062890866861 has 16 divisors (see below), whose sum is σ = 70028169924416. Its totient is φ = 33077973390336.

The previous prime is 51062890866847. The next prime is 51062890866919. The reversal of 51062890866861 is 16866809826015.

It is not a de Polignac number, because 51062890866861 - 2⁵ = 51062890866829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51062890866792 and 51062890866801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51062890862861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1025457910 + ... + 1025507703.

It is an arithmetic number, because the mean of its divisors is an integer number (4376760620276).

Almost surely, 2^{51062890866861} is an apocalyptic number.

It is an amenable number.

51062890866861 is a deficient number, since it is larger than the sum of its proper divisors (18965279057555).

51062890866861 is a wasteful number, since it uses less digits than its factorization.

51062890866861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050965852.

The product of its (nonzero) digits is 59719680, while the sum is 66.

The spelling of 51062890866861 in words is "fifty-one trillion, sixty-two billion, eight hundred ninety million, eight hundred sixty-six thousand, eight hundred sixty-one".