1018953968 has 20 divisors (see below), whose sum is σ = 1982927400. Its totient is φ = 507230784.

The previous prime is 1018953967. The next prime is 1018953979. The reversal of 1018953968 is 8693598101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018953967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136643 + ... + 143906.

It is an arithmetic number, because the mean of its divisors is an integer number (99146370).

Almost surely, 2^1018953968 is an apocalyptic number.

It is an amenable number.

1018953968 is a deficient number, since it is larger than the sum of its proper divisors (963973432).

1018953968 is a wasteful number, since it uses less digits than its factorization.

1018953968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280784 (or 280778 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 50.

The square root of 1018953968 is about 31921.0583784435. The cubic root of 1018953968 is about 1006.2784874308.

The spelling of 1018953968 in words is "one billion, eighteen million, nine hundred fifty-three thousand, nine hundred sixty-eight".