194838725159012 has 24 divisors (see below), whose sum is σ = 371971532543520. Its totient is φ = 88561463175360.

The previous prime is 194838725158969. The next prime is 194838725159027. The reversal of 194838725159012 is 210951527838491.

It is a super-2 number, since 2×194838725159012² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 194838725159012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37368278 + ... + 42261869.

It is an arithmetic number, because the mean of its divisors is an integer number (15498813855980).

Almost surely, 2^{194838725159012} is an apocalyptic number.

It is an amenable number.

194838725159012 is a deficient number, since it is larger than the sum of its proper divisors (177132807384508).

194838725159012 is a wasteful number, since it uses less digits than its factorization.

194838725159012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79685771 (or 79685769 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 65.

The spelling of 194838725159012 in words is "one hundred ninety-four trillion, eight hundred thirty-eight billion, seven hundred twenty-five million, one hundred fifty-nine thousand, twelve".