2168372534 has 16 divisors (see below), whose sum is σ = 3284492640. Its totient is φ = 1073554560.

The previous prime is 2168372513. The next prime is 2168372539. The reversal of 2168372534 is 4352738612.

It is a junction number, because it is equal to n+sod(n) for n = 2168372491 and 2168372500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168372539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615839 + ... + 619349.

It is an arithmetic number, because the mean of its divisors is an integer number (205280790).

Almost surely, 2^2168372534 is an apocalyptic number.

2168372534 is a deficient number, since it is larger than the sum of its proper divisors (1116120106).

2168372534 is a wasteful number, since it uses less digits than its factorization.

2168372534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6455.

The product of its digits is 241920, while the sum is 41.

The square root of 2168372534 is about 46565.7871618209. The cubic root of 2168372534 is about 1294.3288530483.

The spelling of 2168372534 in words is "two billion, one hundred sixty-eight million, three hundred seventy-two thousand, five hundred thirty-four".