7946992099538 has 6 divisors (see below), whose sum is σ = 11920494129399. Its totient is φ = 3973494056406.

The previous prime is 7946992099531. The next prime is 7946992099589. The reversal of 7946992099538 is 8359902996497.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3973496049769 + 3973496049769 = 1993363^2 + 1993363^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1993363.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7946992099531) 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 2 ways as a sum of consecutive naturals, for example, 2990045 + ... + 4983407.

Almost surely, 2^{7946992099538} is an apocalyptic number.

7946992099538 is a deficient number, since it is larger than the sum of its proper divisors (3973502029861).

7946992099538 is an frugal number, since it uses more digits than its factorization.

7946992099538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3986728 (or 1993365 counting only the distinct ones).

The product of its (nonzero) digits is 2380855680, while the sum is 80.

The spelling of 7946992099538 in words is "seven trillion, nine hundred forty-six billion, nine hundred ninety-two million, ninety-nine thousand, five hundred thirty-eight".