1351662401744 has 20 divisors (see below), whose sum is σ = 2709150935460. Its totient is φ = 652526676480.

The previous prime is 1351662401743. The next prime is 1351662401767. The reversal of 1351662401744 is 4471042661531.

It can be written as a sum of positive squares in 2 ways, for example, as 798899891344 + 552762510400 = 893812^2 + 743480^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1351662401695 and 1351662401704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351662401743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1456532297 + ... + 1456533224.

It is an arithmetic number, because the mean of its divisors is an integer number (135457546773).

Almost surely, 2^{1351662401744} is an apocalyptic number.

It is an amenable number.

1351662401744 is an abundant number, since it is smaller than the sum of its proper divisors (1357488533716).

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

1351662401744 is a wasteful number, since it uses less digits than its factorization.

1351662401744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913065558 (or 2913065552 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 1351662401744 in words is "one trillion, three hundred fifty-one billion, six hundred sixty-two million, four hundred one thousand, seven hundred forty-four".