1392782394489 has 8 divisors (see below), whose sum is σ = 1857323020800. Its totient is φ = 928381682256.

The previous prime is 1392782394481. The next prime is 1392782394581. The reversal of 1392782394489 is 9844932872931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1392782394489 - 2³ = 1392782394481 is a prime.

It is a super-2 number, since 2×1392782394489² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1392782394481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34955289 + ... + 34995110.

It is an arithmetic number, because the mean of its divisors is an integer number (232165377600).

Almost surely, 2^{1392782394489} is an apocalyptic number.

It is an amenable number.

1392782394489 is a deficient number, since it is larger than the sum of its proper divisors (464540626311).

1392782394489 is an equidigital number, since it uses as much as digits as its factorization.

1392782394489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69957039.

The product of its digits is 188116992, while the sum is 69.

The spelling of 1392782394489 in words is "one trillion, three hundred ninety-two billion, seven hundred eighty-two million, three hundred ninety-four thousand, four hundred eighty-nine".