72000078000029 has 2 divisors, whose sum is σ = 72000078000030. Its totient is φ = 72000078000028.

The previous prime is 72000078000007. The next prime is 72000078000043. The reversal of 72000078000029 is 92000087000027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61869079176100 + 10130998823929 = 7865690^2 + 3182923^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72000078000029 is a prime.

It is a super-2 number, since 2×72000078000029² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72000078000049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36000039000014 + 36000039000015.

It is an arithmetic number, because the mean of its divisors is an integer number (36000039000015).

Almost surely, 2^{72000078000029} is an apocalyptic number.

It is an amenable number.

72000078000029 is a deficient number, since it is larger than the sum of its proper divisors (1).

72000078000029 is an equidigital number, since it uses as much as digits as its factorization.

72000078000029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 35.

The spelling of 72000078000029 in words is "seventy-two trillion, seventy-eight million, twenty-nine", and thus it is an aban number and an uban number.