51745644654715 has 8 divisors (see below), whose sum is σ = 67739753002608. Its totient is φ = 37633196112480.

The previous prime is 51745644654679. The next prime is 51745644654733.

51745644654715 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51745644654715 - 2¹³ = 51745644646523 is a prime.

It is a super-2 number, since 2×51745644654715² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470414951352 + ... + 470414951461.

It is an arithmetic number, because the mean of its divisors is an integer number (8467469125326).

Almost surely, 2^{51745644654715} is an apocalyptic number.

51745644654715 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51745644654715 is a deficient number, since it is larger than the sum of its proper divisors (15994108347893).

51745644654715 is a wasteful number, since it uses less digits than its factorization.

51745644654715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940829902829.

The product of its digits is 282240000, while the sum is 64.

The spelling of 51745644654715 in words is "fifty-one trillion, seven hundred forty-five billion, six hundred forty-four million, six hundred fifty-four thousand, seven hundred fifteen".