1201844339738 has 64 divisors (see below), whose sum is σ = 2147762276352. Its totient is φ = 493741483200.

The previous prime is 1201844339659. The next prime is 1201844339753. The reversal of 1201844339738 is 8379334481021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201844339738.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7465220 + ... + 7624512.

It is an arithmetic number, because the mean of its divisors is an integer number (33558785568).

Almost surely, 2^{1201844339738} is an apocalyptic number.

1201844339738 is a deficient number, since it is larger than the sum of its proper divisors (945917936614).

1201844339738 is a wasteful number, since it uses less digits than its factorization.

1201844339738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159579.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 1201844339738 in words is "one trillion, two hundred one billion, eight hundred forty-four million, three hundred thirty-nine thousand, seven hundred thirty-eight".