7900000036438 has 32 divisors (see below), whose sum is σ = 12778457660640. Its totient is φ = 3650680938240.

The previous prime is 7900000036429. The next prime is 7900000036441. The reversal of 7900000036438 is 8346300000097.

It is a self number, because there is not a number n which added to its sum of digits gives 7900000036438.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42404620 + ... + 42590512.

It is an arithmetic number, because the mean of its divisors is an integer number (399326801895).

Almost surely, 2^{7900000036438} is an apocalyptic number.

7900000036438 is a deficient number, since it is larger than the sum of its proper divisors (4878457624202).

7900000036438 is a wasteful number, since it uses less digits than its factorization.

7900000036438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213232.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 7900000036438 in words is "seven trillion, nine hundred billion, thirty-six thousand, four hundred thirty-eight".