1399857338906 has 32 divisors (see below), whose sum is σ = 2295534584448. Its totient is φ = 636312980160.

The previous prime is 1399857338897. The next prime is 1399857338923. The reversal of 1399857338906 is 6098337589931.

It is a self number, because there is not a number n which added to its sum of digits gives 1399857338906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8582171 + ... + 8743761.

It is an arithmetic number, because the mean of its divisors is an integer number (71735455764).

Almost surely, 2^{1399857338906} is an apocalyptic number.

1399857338906 is a deficient number, since it is larger than the sum of its proper divisors (895677245542).

1399857338906 is a wasteful number, since it uses less digits than its factorization.

1399857338906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166646.

The product of its (nonzero) digits is 264539520, while the sum is 71.

The spelling of 1399857338906 in words is "one trillion, three hundred ninety-nine billion, eight hundred fifty-seven million, three hundred thirty-eight thousand, nine hundred six".