1409102780826 has 64 divisors (see below), whose sum is σ = 3196438922880. Its totient is φ = 410530498560.

The previous prime is 1409102780809. The next prime is 1409102780881. The reversal of 1409102780826 is 6280872019041.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2521966 + ... + 3029606.

It is an arithmetic number, because the mean of its divisors is an integer number (49944358170).

Almost surely, 2^{1409102780826} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1409102780826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1598219461440).

1409102780826 is an abundant number, since it is smaller than the sum of its proper divisors (1787336142054).

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

1409102780826 is a wasteful number, since it uses less digits than its factorization.

1409102780826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509551.

The product of its (nonzero) digits is 387072, while the sum is 48.

Adding to 1409102780826 its reverse (6280872019041), we get a palindrome (7689974799867).

The spelling of 1409102780826 in words is "one trillion, four hundred nine billion, one hundred two million, seven hundred eighty thousand, eight hundred twenty-six".