1319400147942 has 128 divisors (see below), whose sum is σ = 3040906976640. Its totient is φ = 423783360000.

The previous prime is 1319400147937. The next prime is 1319400147943. The reversal of 1319400147942 is 2497410049131.

1319400147942 is a `hidden beast` number, since 1 + 3 + 19 + 400 + 147 + 94 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1319400147943) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 122376592 + ... + 122387372.

It is an arithmetic number, because the mean of its divisors is an integer number (23757085755).

Almost surely, 2^{1319400147942} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1319400147942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1520453488320).

1319400147942 is an abundant number, since it is smaller than the sum of its proper divisors (1721506828698).

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

1319400147942 is a wasteful number, since it uses less digits than its factorization.

1319400147942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11607 (or 11601 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 1319400147942 in words is "one trillion, three hundred nineteen billion, four hundred million, one hundred forty-seven thousand, nine hundred forty-two".