1491254990408 has 64 divisors (see below), whose sum is σ = 2967656832000. Its totient is φ = 700994935872.

The previous prime is 1491254990333. The next prime is 1491254990437. The reversal of 1491254990408 is 8040994521941.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92691341 + ... + 92707427.

It is an arithmetic number, because the mean of its divisors is an integer number (46369638000).

Almost surely, 2^{1491254990408} is an apocalyptic number.

It is an amenable number.

1491254990408 is a deficient number, since it is larger than the sum of its proper divisors (1476401841592).

1491254990408 is a wasteful number, since it uses less digits than its factorization.

1491254990408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24714 (or 24710 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 1491254990408 in words is "one trillion, four hundred ninety-one billion, two hundred fifty-four million, nine hundred ninety thousand, four hundred eight".