1391002441920 has 2688 divisors, whose sum is σ = 6507063521280. Its totient is φ = 273277255680.

The previous prime is 1391002441889. The next prime is 1391002441951. The reversal of 1391002441920 is 291442001931.

1391002441920 is a `hidden beast` number, since 1 + 391 + 0 + 0 + 244 + 1 + 9 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (1391002441889) and next prime (1391002441951).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 14340231312 + ... + 14340231408.

It is an arithmetic number, because the mean of its divisors is an integer number (2420782560).

Almost surely, 2^{1391002441920} is an apocalyptic number.

1391002441920 is a gapful number since it is divisible by the number (10) 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 1391002441920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3253531760640).

1391002441920 is an abundant number, since it is smaller than the sum of its proper divisors (5116061079360).

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

1391002441920 is a wasteful number, since it uses less digits than its factorization.

1391002441920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 1391002441920 in words is "one trillion, three hundred ninety-one billion, two million, four hundred forty-one thousand, nine hundred twenty".