1003921453899 has 192 divisors, whose sum is σ = 1876520009728. Its totient is φ = 503003001600.

The previous prime is 1003921453891. The next prime is 1003921453943. The reversal of 1003921453899 is 9983541293001.

1003921453899 is a `hidden beast` number, since 1 + 0 + 0 + 3 + 9 + 2 + 14 + 538 + 99 = 666.

It is not a de Polignac number, because 1003921453899 - 2³ = 1003921453891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1003921453891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 563050962 + ... + 563052744.

Almost surely, 2^{1003921453899} is an apocalyptic number.

1003921453899 is a deficient number, since it is larger than the sum of its proper divisors (872598555829).

1003921453899 is a wasteful number, since it uses less digits than its factorization.

1003921453899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238 (or 2235 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 1003921453899 in words is "one trillion, three billion, nine hundred twenty-one million, four hundred fifty-three thousand, eight hundred ninety-nine".