1396534401805 has 16 divisors (see below), whose sum is σ = 1761468228864. Its totient is φ = 1060852017280.

The previous prime is 1396534401793. The next prime is 1396534401833. The reversal of 1396534401805 is 5081044356931.

It is not a de Polignac number, because 1396534401805 - 2¹³ = 1396534393613 is a prime.

It is a congruent number.

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, 44304601 + ... + 44336110.

It is an arithmetic number, because the mean of its divisors is an integer number (110091764304).

Almost surely, 2^{1396534401805} is an apocalyptic number.

It is an amenable number.

1396534401805 is a deficient number, since it is larger than the sum of its proper divisors (364933827059).

1396534401805 is a wasteful number, since it uses less digits than its factorization.

1396534401805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88640876.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 1396534401805 in words is "one trillion, three hundred ninety-six billion, five hundred thirty-four million, four hundred one thousand, eight hundred five".