1380126526836 has 24 divisors (see below), whose sum is σ = 3288812150400. Its totient is φ = 450254044032.

The previous prime is 1380126526819. The next prime is 1380126526843. The reversal of 1380126526836 is 6386256210831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1223515861 + ... + 1223516988.

It is an arithmetic number, because the mean of its divisors is an integer number (137033839600).

Almost surely, 2^{1380126526836} is an apocalyptic number.

It is an amenable number.

1380126526836 is an abundant number, since it is smaller than the sum of its proper divisors (1908685623564).

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

1380126526836 is a wasteful number, since it uses less digits than its factorization.

1380126526836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447032903 (or 2447032901 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 1380126526836 in words is "one trillion, three hundred eighty billion, one hundred twenty-six million, five hundred twenty-six thousand, eight hundred thirty-six".