516619881 has 12 divisors (see below), whose sum is σ = 753475008. Its totient is φ = 341068824.

The previous prime is 516619879. The next prime is 516619897. The reversal of 516619881 is 188916615.

It is not a de Polignac number, because 516619881 - 2¹ = 516619879 is a prime.

It is a super-2 number, since 2×516619881² = 533792202888908322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (516619801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277725 + ... + 279578.

It is an arithmetic number, because the mean of its divisors is an integer number (62789584).

Almost surely, 2^516619881 is an apocalyptic number.

It is an amenable number.

516619881 is a deficient number, since it is larger than the sum of its proper divisors (236855127).

516619881 is a wasteful number, since it uses less digits than its factorization.

516619881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557412 (or 557409 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 516619881 is about 22729.2736575545. The cubic root of 516619881 is about 802.3989869072.

The spelling of 516619881 in words is "five hundred sixteen million, six hundred nineteen thousand, eight hundred eighty-one".