72554561036239 has 2 divisors, whose sum is σ = 72554561036240. Its totient is φ = 72554561036238.

The previous prime is 72554561036231. The next prime is 72554561036261. The reversal of 72554561036239 is 93263016545527.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72554561036239 - 2³ = 72554561036231 is a prime.

It is a super-2 number, since 2×72554561036239² (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 (72554561036231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36277280518119 + 36277280518120.

It is an arithmetic number, because the mean of its divisors is an integer number (36277280518120).

Almost surely, 2^{72554561036239} is an apocalyptic number.

72554561036239 is a deficient number, since it is larger than the sum of its proper divisors (1).

72554561036239 is an equidigital number, since it uses as much as digits as its factorization.

72554561036239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824000, while the sum is 58.

The spelling of 72554561036239 in words is "seventy-two trillion, five hundred fifty-four billion, five hundred sixty-one million, thirty-six thousand, two hundred thirty-nine".