11897323401598 has 32 divisors (see below), whose sum is σ = 18562987376640. Its totient is φ = 5712636300480.

The previous prime is 11897323401589. The next prime is 11897323401599. The reversal of 11897323401598 is 89510432379811.

It is a super-2 number, since 2×11897323401598² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11897323401599) 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, 22837615 + ... + 23352757.

It is an arithmetic number, because the mean of its divisors is an integer number (580093355520).

Almost surely, 2^{11897323401598} is an apocalyptic number.

11897323401598 is a deficient number, since it is larger than the sum of its proper divisors (6665663975042).

11897323401598 is a wasteful number, since it uses less digits than its factorization.

11897323401598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518032.

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 11897323401598 in words is "eleven trillion, eight hundred ninety-seven billion, three hundred twenty-three million, four hundred one thousand, five hundred ninety-eight".