7438961362191 has 16 divisors (see below), whose sum is σ = 9933219863520. Its totient is φ = 4952006087040.

The previous prime is 7438961362181. The next prime is 7438961362289. The reversal of 7438961362191 is 1912631698347.

7438961362191 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7438961362191 - 2⁹ = 7438961361679 is a prime.

It is a super-2 number, since 2×7438961362191² (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 (7438961362111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37278261 + ... + 37477281.

It is an arithmetic number, because the mean of its divisors is an integer number (620826241470).

Almost surely, 2^{7438961362191} is an apocalyptic number.

7438961362191 is a deficient number, since it is larger than the sum of its proper divisors (2494258501329).

7438961362191 is a wasteful number, since it uses less digits than its factorization.

7438961362191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217306.

The product of its digits is 11757312, while the sum is 60.

The spelling of 7438961362191 in words is "seven trillion, four hundred thirty-eight billion, nine hundred sixty-one million, three hundred sixty-two thousand, one hundred ninety-one".