516993472739 has 2 divisors, whose sum is σ = 516993472740. Its totient is φ = 516993472738.

The previous prime is 516993472693. The next prime is 516993472847. The reversal of 516993472739 is 937274399615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 516993472739 - 2¹² = 516993468643 is a prime.

It is a super-2 number, since 2×516993472739² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (516993472139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258496736369 + 258496736370.

It is an arithmetic number, because the mean of its divisors is an integer number (258496736370).

Almost surely, 2^516993472739 is an apocalyptic number.

516993472739 is a deficient number, since it is larger than the sum of its proper divisors (1).

516993472739 is an equidigital number, since it uses as much as digits as its factorization.

516993472739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77157360, while the sum is 65.

The spelling of 516993472739 in words is "five hundred sixteen billion, nine hundred ninety-three million, four hundred seventy-two thousand, seven hundred thirty-nine".