5161957943 has 16 divisors (see below), whose sum is σ = 5528010240. Its totient is φ = 4805791200.

The previous prime is 5161957897. The next prime is 5161957993. The reversal of 5161957943 is 3497591615.

It is not a de Polignac number, because 5161957943 - 2¹² = 5161953847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5161957891 and 5161957900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5161957993) 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 15 ways as a sum of consecutive naturals, for example, 421598 + ... + 433668.

It is an arithmetic number, because the mean of its divisors is an integer number (345500640).

Almost surely, 2^5161957943 is an apocalyptic number.

5161957943 is a deficient number, since it is larger than the sum of its proper divisors (366052297).

5161957943 is a wasteful number, since it uses less digits than its factorization.

5161957943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12478.

The product of its digits is 1020600, while the sum is 50.

The square root of 5161957943 is about 71846.7671019372. The cubic root of 5161957943 is about 1728.2430560841.

The spelling of 5161957943 in words is "five billion, one hundred sixty-one million, nine hundred fifty-seven thousand, nine hundred forty-three".