1331450819457 has 32 divisors (see below), whose sum is σ = 1943748043776. Its totient is φ = 803986142400.

The previous prime is 1331450819443. The next prime is 1331450819483. The reversal of 1331450819457 is 7549180541331.

It is not a de Polignac number, because 1331450819457 - 2⁴ = 1331450819441 is a prime.

It is a super-3 number, since 3×1331450819457³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1331450814457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45071782 + ... + 45101312.

It is an arithmetic number, because the mean of its divisors is an integer number (60742126368).

Almost surely, 2^{1331450819457} is an apocalyptic number.

It is an amenable number.

1331450819457 is a deficient number, since it is larger than the sum of its proper divisors (612297224319).

1331450819457 is a wasteful number, since it uses less digits than its factorization.

1331450819457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34501.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 1331450819457 in words is "one trillion, three hundred thirty-one billion, four hundred fifty million, eight hundred nineteen thousand, four hundred fifty-seven".