1381377763392 has 168 divisors, whose sum is σ = 4018449976800. Its totient is φ = 418486210560.

The previous prime is 1381377763387. The next prime is 1381377763393. The reversal of 1381377763392 is 2933677731831.

It is not an unprimeable number, because it can be changed into a prime (1381377763393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134252584 + ... + 134262872.

It is an arithmetic number, because the mean of its divisors is an integer number (23919345100).

Almost surely, 2^{1381377763392} is an apocalyptic number.

1381377763392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1381377763392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2009224988400).

1381377763392 is an abundant number, since it is smaller than the sum of its proper divisors (2637072213408).

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

1381377763392 is a wasteful number, since it uses less digits than its factorization.

1381377763392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16105 (or 16084 counting only the distinct ones).

The product of its digits is 24004512, while the sum is 60.

The spelling of 1381377763392 in words is "one trillion, three hundred eighty-one billion, three hundred seventy-seven million, seven hundred sixty-three thousand, three hundred ninety-two".