1239074461729 has 16 divisors (see below), whose sum is σ = 1347501197952. Its totient is φ = 1132523664768.

The previous prime is 1239074461727. The next prime is 1239074461739. The reversal of 1239074461729 is 9271644709321.

It is a cyclic number.

It is not a de Polignac number, because 1239074461729 - 2¹ = 1239074461727 is a prime.

It is a super-2 number, since 2×1239074461729² (a number of 25 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 1239074461729.

It is not an unprimeable number, because it can be changed into a prime (1239074461721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12433869 + ... + 12533125.

It is an arithmetic number, because the mean of its divisors is an integer number (84218824872).

Almost surely, 2^{1239074461729} is an apocalyptic number.

It is an amenable number.

1239074461729 is a deficient number, since it is larger than the sum of its proper divisors (108426736223).

1239074461729 is a wasteful number, since it uses less digits than its factorization.

1239074461729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108696.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 1239074461729 in words is "one trillion, two hundred thirty-nine billion, seventy-four million, four hundred sixty-one thousand, seven hundred twenty-nine".