6568149973 has 24 divisors (see below), whose sum is σ = 8408931840. Its totient is φ = 5072699520.

The previous prime is 6568149943. The next prime is 6568149977. The reversal of 6568149973 is 3799418656.

It is not a de Polignac number, because 6568149973 - 2²¹ = 6566052821 is a prime.

It is a super-4 number, since 4×6568149973⁴ (a number of 40 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6568149977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6988 + ... + 114826.

It is an arithmetic number, because the mean of its divisors is an integer number (350372160).

Almost surely, 2^6568149973 is an apocalyptic number.

It is an amenable number.

6568149973 is a deficient number, since it is larger than the sum of its proper divisors (1840781867).

6568149973 is a wasteful number, since it uses less digits than its factorization.

6568149973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107977 (or 107970 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 58.

The square root of 6568149973 is about 81044.1236179404. The cubic root of 6568149973 is about 1872.7552369926.

The spelling of 6568149973 in words is "six billion, five hundred sixty-eight million, one hundred forty-nine thousand, nine hundred seventy-three".