72366477766277 has 2 divisors, whose sum is σ = 72366477766278. Its totient is φ = 72366477766276.

The previous prime is 72366477766211. The next prime is 72366477766381. The reversal of 72366477766277 is 77266777466327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54113810851681 + 18252666914596 = 7356209^2 + 4272314^2 .

It is a cyclic number.

It is not a de Polignac number, because 72366477766277 - 2¹² = 72366477762181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72366477766198 and 72366477766207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72366477766777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36183238883138 + 36183238883139.

It is an arithmetic number, because the mean of its divisors is an integer number (36183238883139).

Almost surely, 2^{72366477766277} is an apocalyptic number.

It is an amenable number.

72366477766277 is a deficient number, since it is larger than the sum of its proper divisors (1).

72366477766277 is an equidigital number, since it uses as much as digits as its factorization.

72366477766277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7318708992, while the sum is 77.

The spelling of 72366477766277 in words is "seventy-two trillion, three hundred sixty-six billion, four hundred seventy-seven million, seven hundred sixty-six thousand, two hundred seventy-seven".