1993136400739 has 12 divisors (see below), whose sum is σ = 2202906727840. Its totient is φ = 1801931432400.

The previous prime is 1993136400733. The next prime is 1993136400769. The reversal of 1993136400739 is 9370046313991.

It is not a de Polignac number, because 1993136400739 - 2¹⁷ = 1993136269667 is a prime.

It is a super-2 number, since 2×1993136400739² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1993136400739.

It is not an unprimeable number, because it can be changed into a prime (1993136400733) 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 11 ways as a sum of consecutive naturals, for example, 45481419 + ... + 45525220.

Almost surely, 2^{1993136400739} is an apocalyptic number.

1993136400739 is a deficient number, since it is larger than the sum of its proper divisors (209770327101).

1993136400739 is a wasteful number, since it uses less digits than its factorization.

1993136400739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91006842 (or 91006831 counting only the distinct ones).

The product of its (nonzero) digits is 3306744, while the sum is 55.

The spelling of 1993136400739 in words is "one trillion, nine hundred ninety-three billion, one hundred thirty-six million, four hundred thousand, seven hundred thirty-nine".