72126551235 has 16 divisors (see below), whose sum is σ = 115426634400. Its totient is φ = 38459443200.

The previous prime is 72126551227. The next prime is 72126551239. The reversal of 72126551235 is 53215562127.

It is not a de Polignac number, because 72126551235 - 2³ = 72126551227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72126551193 and 72126551202.

It is not an unprimeable number, because it can be changed into a prime (72126551239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428760 + ... + 572789.

It is an arithmetic number, because the mean of its divisors is an integer number (7214164650).

Almost surely, 2^72126551235 is an apocalyptic number.

72126551235 is a deficient number, since it is larger than the sum of its proper divisors (43300083165).

72126551235 is a wasteful number, since it uses less digits than its factorization.

72126551235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006358.

The product of its digits is 126000, while the sum is 39.

The spelling of 72126551235 in words is "seventy-two billion, one hundred twenty-six million, five hundred fifty-one thousand, two hundred thirty-five".