1392538682806 has 32 divisors (see below), whose sum is σ = 2216430604800. Its totient is φ = 654834459840.

The previous prime is 1392538682779. The next prime is 1392538682809. The reversal of 1392538682806 is 6082868352931.

It is a happy number.

It is a super-2 number, since 2×1392538682806² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392538682809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217290 + ... + 1682941.

It is an arithmetic number, because the mean of its divisors is an integer number (69263456400).

Almost surely, 2^{1392538682806} is an apocalyptic number.

1392538682806 is a deficient number, since it is larger than the sum of its proper divisors (823891921994).

1392538682806 is a wasteful number, since it uses less digits than its factorization.

1392538682806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900524.

The product of its (nonzero) digits is 29859840, while the sum is 61.

The spelling of 1392538682806 in words is "one trillion, three hundred ninety-two billion, five hundred thirty-eight million, six hundred eighty-two thousand, eight hundred six".