72245156834 has 4 divisors (see below), whose sum is σ = 108367735254. Its totient is φ = 36122578416.

The previous prime is 72245156833. The next prime is 72245156839. The reversal of 72245156834 is 43865154227.

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

It can be written as a sum of positive squares in only one way, i.e., 62949304609 + 9295852225 = 250897^2 + 96415^2 .

It is not an unprimeable number, because it can be changed into a prime (72245156833) 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 as a sum of consecutive naturals, namely, 18061289207 + ... + 18061289210.

Almost surely, 2^72245156834 is an apocalyptic number.

72245156834 is a deficient number, since it is larger than the sum of its proper divisors (36122578420).

72245156834 is a wasteful number, since it uses less digits than its factorization.

72245156834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36122578419.

The product of its digits is 1612800, while the sum is 47.

The spelling of 72245156834 in words is "seventy-two billion, two hundred forty-five million, one hundred fifty-six thousand, eight hundred thirty-four".