72844011737226 has 32 divisors (see below), whose sum is σ = 161936050985280. Its totient is φ = 24272266843728.

The previous prime is 72844011737197. The next prime is 72844011737239. The reversal of 72844011737226 is 62273711044827.

It is a happy number.

72844011737226 is a `hidden beast` number, since 7 + 2 + 8 + 4 + 401 + 1 + 7 + 3 + 7 + 226 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251809716 + ... + 252098831.

It is an arithmetic number, because the mean of its divisors is an integer number (5060501593290).

Almost surely, 2^{72844011737226} is an apocalyptic number.

72844011737226 is an abundant number, since it is smaller than the sum of its proper divisors (89092039248054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72844011737226 is a wasteful number, since it uses less digits than its factorization.

72844011737226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503911235 (or 503911229 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 54.

The spelling of 72844011737226 in words is "seventy-two trillion, eight hundred forty-four billion, eleven million, seven hundred thirty-seven thousand, two hundred twenty-six".