9919737625742 has 16 divisors (see below), whose sum is σ = 17005405653600. Its totient is φ = 4251280837248.

The previous prime is 9919737625697. The next prime is 9919737625757. The reversal of 9919737625742 is 2475267379199.

It is a super-2 number, since 2×9919737625742² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 1156463 + ... + 4601834.

It is an arithmetic number, because the mean of its divisors is an integer number (1062837853350).

Almost surely, 2^{9919737625742} is an apocalyptic number.

9919737625742 is a deficient number, since it is larger than the sum of its proper divisors (7085668027858).

9919737625742 is a wasteful number, since it uses less digits than its factorization.

9919737625742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5881355.

The product of its digits is 360067680, while the sum is 71.

The spelling of 9919737625742 in words is "nine trillion, nine hundred nineteen billion, seven hundred thirty-seven million, six hundred twenty-five thousand, seven hundred forty-two".