1913808454 has 8 divisors (see below), whose sum is σ = 2896117560. Its totient is φ = 948435936.

The previous prime is 1913808451. The next prime is 1913808511. The reversal of 1913808454 is 4548083191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1913808454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913808451) 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, 4233864 + ... + 4234315.

It is an arithmetic number, because the mean of its divisors is an integer number (362014695).

Almost surely, 2^1913808454 is an apocalyptic number.

1913808454 is a deficient number, since it is larger than the sum of its proper divisors (982309106).

1913808454 is a wasteful number, since it uses less digits than its factorization.

1913808454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8468294.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 1913808454 is about 43747.0965207978. The cubic root of 1913808454 is about 1241.5555516821. Note that the first 5 decimals are identical.

The spelling of 1913808454 in words is "one billion, nine hundred thirteen million, eight hundred eight thousand, four hundred fifty-four".