1392424891388 has 6 divisors (see below), whose sum is σ = 2436743559936. Its totient is φ = 696212445692.

The previous prime is 1392424891373. The next prime is 1392424891409. The reversal of 1392424891388 is 8831984242931.

It is a self number, because there is not a number n which added to its sum of digits gives 1392424891388.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174053111420 + ... + 174053111427.

It is an arithmetic number, because the mean of its divisors is an integer number (406123926656).

Almost surely, 2^{1392424891388} is an apocalyptic number.

It is an amenable number.

1392424891388 is a deficient number, since it is larger than the sum of its proper divisors (1044318668548).

1392424891388 is a wasteful number, since it uses less digits than its factorization.

1392424891388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348106222851 (or 348106222849 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 62.

The spelling of 1392424891388 in words is "one trillion, three hundred ninety-two billion, four hundred twenty-four million, eight hundred ninety-one thousand, three hundred eighty-eight".