1018196456 has 8 divisors (see below), whose sum is σ = 1909118370. Its totient is φ = 509098224.

The previous prime is 1018196449. The next prime is 1018196461. The reversal of 1018196456 is 6546918101.

1018196456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 926228356 + 91968100 = 30434^2 + 9590^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63637271 + ... + 63637286.

Almost surely, 2^1018196456 is an apocalyptic number.

It is an amenable number.

1018196456 is a deficient number, since it is larger than the sum of its proper divisors (890921914).

1018196456 is a wasteful number, since it uses less digits than its factorization.

1018196456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127274563 (or 127274559 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 1018196456 is about 31909.1907763265. The cubic root of 1018196456 is about 1006.0290626851.

The spelling of 1018196456 in words is "one billion, eighteen million, one hundred ninety-six thousand, four hundred fifty-six".