1392402665472 has 312 divisors, whose sum is σ = 4651001300736. Its totient is φ = 367225012224.

The previous prime is 1392402665417. The next prime is 1392402665473. The reversal of 1392402665472 is 2745662042931.

It is a tau number, because it is divible by the number of its divisors (312).

It is not an unprimeable number, because it can be changed into a prime (1392402665473) 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, 7738513 + ... + 7916399.

Almost surely, 2^{1392402665472} is an apocalyptic number.

1392402665472 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 1392402665472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2325500650368).

1392402665472 is an abundant number, since it is smaller than the sum of its proper divisors (3258598635264).

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

1392402665472 is a wasteful number, since it uses less digits than its factorization.

1392402665472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177941 (or 177912 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 1392402665472 in words is "one trillion, three hundred ninety-two billion, four hundred two million, six hundred sixty-five thousand, four hundred seventy-two".