72445526836 has 24 divisors (see below), whose sum is σ = 129582706176. Its totient is φ = 35423153760.

The previous prime is 72445526771. The next prime is 72445526837. The reversal of 72445526836 is 63862554427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72445526837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74910 + ... + 387946.

It is an arithmetic number, because the mean of its divisors is an integer number (5399279424).

Almost surely, 2^72445526836 is an apocalyptic number.

It is an amenable number.

72445526836 is a deficient number, since it is larger than the sum of its proper divisors (57137179340).

72445526836 is a wasteful number, since it uses less digits than its factorization.

72445526836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314319 (or 314317 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 52.

The spelling of 72445526836 in words is "seventy-two billion, four hundred forty-five million, five hundred twenty-six thousand, eight hundred thirty-six".