7901075912113 has 4 divisors (see below), whose sum is σ = 7901470413940. Its totient is φ = 7900681410288.

The previous prime is 7901075912099. The next prime is 7901075912129. The reversal of 7901075912113 is 3112195701097.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5063256028224 + 2837819883889 = 2250168^2 + 1684583^2 .

It is a cyclic number.

It is not a de Polignac number, because 7901075912113 - 2²¹ = 7901073814961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7901075912713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197220870 + ... + 197260927.

It is an arithmetic number, because the mean of its divisors is an integer number (1975367603485).

Almost surely, 2^{7901075912113} is an apocalyptic number.

It is an amenable number.

7901075912113 is a deficient number, since it is larger than the sum of its proper divisors (394501827).

7901075912113 is a wasteful number, since it uses less digits than its factorization.

7901075912113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394501826.

The product of its (nonzero) digits is 119070, while the sum is 46.

It can be divided in two parts, 7901075 and 912113, that added together give a palindrome (8813188).

The spelling of 7901075912113 in words is "seven trillion, nine hundred one billion, seventy-five million, nine hundred twelve thousand, one hundred thirteen".