7138121573673 has 32 divisors (see below), whose sum is σ = 10718067302400. Its totient is φ = 4694468779728.

The previous prime is 7138121573663. The next prime is 7138121573689. The reversal of 7138121573673 is 3763751218317.

7138121573673 is a `hidden beast` number, since 7 + 1 + 3 + 8 + 1 + 2 + 1 + 573 + 67 + 3 = 666.

It is not a de Polignac number, because 7138121573673 - 2¹⁶ = 7138121508137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7138121573663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1041936 + ... + 3919422.

It is an arithmetic number, because the mean of its divisors is an integer number (334939603200).

Almost surely, 2^{7138121573673} is an apocalyptic number.

It is an amenable number.

7138121573673 is a deficient number, since it is larger than the sum of its proper divisors (3579945728727).

7138121573673 is a wasteful number, since it uses less digits than its factorization.

7138121573673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878738 (or 2878732 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 54.

The spelling of 7138121573673 in words is "seven trillion, one hundred thirty-eight billion, one hundred twenty-one million, five hundred seventy-three thousand, six hundred seventy-three".