7938791906907 has 16 divisors (see below), whose sum is σ = 10587843381248. Its totient is φ = 5291134397280.

The previous prime is 7938791906831. The next prime is 7938791906923. The reversal of 7938791906907 is 7096091978397.

It is a de Polignac number, because none of the positive numbers 2^k-7938791906907 is a prime.

It is a super-3 number, since 3×7938791906907³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7938791906957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223856157 + ... + 223891617.

It is an arithmetic number, because the mean of its divisors is an integer number (661740211328).

Almost surely, 2^{7938791906907} is an apocalyptic number.

7938791906907 is a deficient number, since it is larger than the sum of its proper divisors (2649051474341).

7938791906907 is a wasteful number, since it uses less digits than its factorization.

7938791906907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53010.

The product of its (nonzero) digits is 324060912, while the sum is 75.

The spelling of 7938791906907 in words is "seven trillion, nine hundred thirty-eight billion, seven hundred ninety-one million, nine hundred six thousand, nine hundred seven".