72235911779134 has 16 divisors (see below), whose sum is σ = 109976686947216. Its totient is φ = 35577071006400.

The previous prime is 72235911779029. The next prime is 72235911779191. The reversal of 72235911779134 is 43197711953227.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11074647 + ... + 16343794.

It is an arithmetic number, because the mean of its divisors is an integer number (6873542934201).

Almost surely, 2^{72235911779134} is an apocalyptic number.

72235911779134 is a deficient number, since it is larger than the sum of its proper divisors (37740775168082).

72235911779134 is a wasteful number, since it uses less digits than its factorization.

72235911779134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27438171.

The product of its digits is 20003760, while the sum is 61.

The spelling of 72235911779134 in words is "seventy-two trillion, two hundred thirty-five billion, nine hundred eleven million, seven hundred seventy-nine thousand, one hundred thirty-four".