516778042754 has 16 divisors (see below), whose sum is σ = 776383639200. Its totient is φ = 257983577280.

The previous prime is 516778042741. The next prime is 516778042799. The reversal of 516778042754 is 457240877615.

It is a super-4 number, since 4×516778042754⁴ (a number of 48 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 516778042754.

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, 21476522 + ... + 21500570.

It is an arithmetic number, because the mean of its divisors is an integer number (48523977450).

Almost surely, 2^516778042754 is an apocalyptic number.

516778042754 is a deficient number, since it is larger than the sum of its proper divisors (259605596446).

516778042754 is a wasteful number, since it uses less digits than its factorization.

516778042754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40465.

The product of its (nonzero) digits is 13171200, while the sum is 56.

The spelling of 516778042754 in words is "five hundred sixteen billion, seven hundred seventy-eight million, forty-two thousand, seven hundred fifty-four".