1378706397024 has 144 divisors (see below), whose sum is σ = 4106348144640. Its totient is φ = 404312620800.

The previous prime is 1378706397023. The next prime is 1378706397041. The reversal of 1378706397024 is 4207936078731.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378706397023) 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, 1554264 + ... + 2274455.

It is an arithmetic number, because the mean of its divisors is an integer number (28516306560).

Almost surely, 2^{1378706397024} is an apocalyptic number.

It is an amenable number.

1378706397024 is an abundant number, since it is smaller than the sum of its proper divisors (2727641747616).

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

1378706397024 is a wasteful number, since it uses less digits than its factorization.

1378706397024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828785 (or 3828766 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 57.

The spelling of 1378706397024 in words is "one trillion, three hundred seventy-eight billion, seven hundred six million, three hundred ninety-seven thousand, twenty-four".