51123664043342 has 32 divisors (see below), whose sum is σ = 84007250578944. Its totient is φ = 23140795910400.

The previous prime is 51123664043311. The next prime is 51123664043407. The reversal of 51123664043342 is 24334046632115.

It is a super-2 number, since 2×51123664043342² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 51123664043293 and 51123664043302.

It is a congruent number.

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, 9899693 + ... + 14151015.

It is an arithmetic number, because the mean of its divisors is an integer number (2625226580592).

Almost surely, 2^{51123664043342} is an apocalyptic number.

51123664043342 is a deficient number, since it is larger than the sum of its proper divisors (32883586535602).

51123664043342 is a wasteful number, since it uses less digits than its factorization.

51123664043342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253624.

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 51123664043342 in words is "fifty-one trillion, one hundred twenty-three billion, six hundred sixty-four million, forty-three thousand, three hundred forty-two".