1380456387752 has 32 divisors (see below), whose sum is σ = 2787853609800. Its totient is φ = 637043752704.

The previous prime is 1380456387683. The next prime is 1380456387787. The reversal of 1380456387752 is 2577836540831.

It can be written as a sum of positive squares in 4 ways, for example, as 778922744356 + 601533643396 = 882566^2 + 775586^2 .

It is a super-2 number, since 2×1380456387752² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1380456387691 and 1380456387700.

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, 194243 + ... + 1672914.

Almost surely, 2^{1380456387752} is an apocalyptic number.

It is an amenable number.

1380456387752 is an abundant number, since it is smaller than the sum of its proper divisors (1407397222048).

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

1380456387752 is a wasteful number, since it uses less digits than its factorization.

1380456387752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874285 (or 1874281 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 59.

The spelling of 1380456387752 in words is "one trillion, three hundred eighty billion, four hundred fifty-six million, three hundred eighty-seven thousand, seven hundred fifty-two".