1491412926465 has 576 divisors, whose sum is σ = 3594528258048. Its totient is φ = 578661304320.

The previous prime is 1491412926413. The next prime is 1491412926511. The reversal of 1491412926465 is 5646292141941.

1491412926465 is a `hidden beast` number, since 1 + 4 + 91 + 4 + 1 + 2 + 92 + 6 + 465 = 666.

It is not a de Polignac number, because 1491412926465 - 2⁷ = 1491412926337 is a prime.

Its product of digits (3732480) is a multiple of the sum of its prime divisors (729).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 2851649694 + ... + 2851650216.

It is an arithmetic number, because the mean of its divisors is an integer number (6240500448).

Almost surely, 2^{1491412926465} is an apocalyptic number.

1491412926465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1491412926465 is an abundant number, since it is smaller than the sum of its proper divisors (2103115331583).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1491412926465 is a wasteful number, since it uses less digits than its factorization.

1491412926465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 729 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 1491412926465 in words is "one trillion, four hundred ninety-one billion, four hundred twelve million, nine hundred twenty-six thousand, four hundred sixty-five".