1968158235 has 16 divisors (see below), whose sum is σ = 3149902080. Its totient is φ = 1049401440.

The previous prime is 1968158191. The next prime is 1968158249. The reversal of 1968158235 is 5328518691.

It is a happy number.

It is not a de Polignac number, because 1968158235 - 2⁸ = 1968157979 is a prime.

It is an unprimeable number.

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, 47586 + ... + 78744.

It is an arithmetic number, because the mean of its divisors is an integer number (196868880).

Almost surely, 2^1968158235 is an apocalyptic number.

1968158235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1968158235 is a deficient number, since it is larger than the sum of its proper divisors (1181743845).

1968158235 is a wasteful number, since it uses less digits than its factorization.

1968158235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35378.

The product of its digits is 518400, while the sum is 48.

The square root of 1968158235 is about 44363.9294359731. The cubic root of 1968158235 is about 1253.1988967975.

The spelling of 1968158235 in words is "one billion, nine hundred sixty-eight million, one hundred fifty-eight thousand, two hundred thirty-five".