1351244646340 has 24 divisors (see below), whose sum is σ = 2871801878400. Its totient is φ = 533985835488.

The previous prime is 1351244646299. The next prime is 1351244646361. The reversal of 1351244646340 is 436464421531.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406999740 + ... + 407003059.

It is an arithmetic number, because the mean of its divisors is an integer number (119658411600).

Almost surely, 2^{1351244646340} is an apocalyptic number.

1351244646340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351244646340 is an abundant number, since it is smaller than the sum of its proper divisors (1520557232060).

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

1351244646340 is a wasteful number, since it uses less digits than its factorization.

1351244646340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814002891 (or 814002889 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 1351244646340 in words is "one trillion, three hundred fifty-one billion, two hundred forty-four million, six hundred forty-six thousand, three hundred forty".