1313472288640 has 64 divisors (see below), whose sum is σ = 3144658865760. Its totient is φ = 524612687872.

The previous prime is 1313472288599. The next prime is 1313472288641. The reversal of 1313472288640 is 468822743131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313472288641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1082452 + ... + 1949011.

Almost surely, 2^{1313472288640} is an apocalyptic number.

1313472288640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313472288640 is an abundant number, since it is smaller than the sum of its proper divisors (1831186577120).

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

1313472288640 is an equidigital number, since it uses as much as digits as its factorization.

1313472288640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032159 (or 3032147 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 1313472288640 in words is "one trillion, three hundred thirteen billion, four hundred seventy-two million, two hundred eighty-eight thousand, six hundred forty".