72441655037 has 2 divisors, whose sum is σ = 72441655038. Its totient is φ = 72441655036.

The previous prime is 72441655003. The next prime is 72441655067. The reversal of 72441655037 is 73055614427.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68982921316 + 3458733721 = 262646^2 + 58811^2 .

It is a cyclic number.

It is not a de Polignac number, because 72441655037 - 2⁶ = 72441654973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72441655067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36220827518 + 36220827519.

It is an arithmetic number, because the mean of its divisors is an integer number (36220827519).

Almost surely, 2^72441655037 is an apocalyptic number.

It is an amenable number.

72441655037 is a deficient number, since it is larger than the sum of its proper divisors (1).

72441655037 is an equidigital number, since it uses as much as digits as its factorization.

72441655037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 72441655037 in words is "seventy-two billion, four hundred forty-one million, six hundred fifty-five thousand, thirty-seven".