1309369323648 has 64 divisors (see below), whose sum is σ = 3479544727200. Its totient is φ = 436264132608.

The previous prime is 1309369323629. The next prime is 1309369323677. The reversal of 1309369323648 is 8463239639031.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 122763 + ... + 1622901.

Almost surely, 2^{1309369323648} is an apocalyptic number.

It is an amenable number.

1309369323648 is an abundant number, since it is smaller than the sum of its proper divisors (2170175403552).

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

1309369323648 is a wasteful number, since it uses less digits than its factorization.

1309369323648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502429 (or 1502417 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 57.

The spelling of 1309369323648 in words is "one trillion, three hundred nine billion, three hundred sixty-nine million, three hundred twenty-three thousand, six hundred forty-eight".