1201697889795 has 24 divisors (see below), whose sum is σ = 2243169395376. Its totient is φ = 591605114688.

The previous prime is 1201697889793. The next prime is 1201697889919. The reversal of 1201697889795 is 5979887961021.

It is a happy number.

It is not a de Polignac number, because 1201697889795 - 2¹ = 1201697889793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201697889793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1027091629 + ... + 1027092798.

It is an arithmetic number, because the mean of its divisors is an integer number (93465391474).

Almost surely, 2^{1201697889795} is an apocalyptic number.

1201697889795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1201697889795 is a deficient number, since it is larger than the sum of its proper divisors (1041471505581).

1201697889795 is a wasteful number, since it uses less digits than its factorization.

1201697889795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054184451 (or 2054184448 counting only the distinct ones).

The product of its (nonzero) digits is 137168640, while the sum is 72.

The spelling of 1201697889795 in words is "one trillion, two hundred one billion, six hundred ninety-seven million, eight hundred eighty-nine thousand, seven hundred ninety-five".