372728731057 has 2 divisors, whose sum is σ = 372728731058. Its totient is φ = 372728731056.

The previous prime is 372728731031. The next prime is 372728731061. The reversal of 372728731057 is 750137827273.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309081514401 + 63647216656 = 555951^2 + 252284^2 .

It is a cyclic number.

It is not a de Polignac number, because 372728731057 - 2²⁷ = 372594513329 is a prime.

It is a super-2 number, since 2×372728731057² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 372728730995 and 372728731013.

It is not a weakly prime, because it can be changed into another prime (372728701057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186364365528 + 186364365529.

It is an arithmetic number, because the mean of its divisors is an integer number (186364365529).

Almost surely, 2^372728731057 is an apocalyptic number.

It is an amenable number.

372728731057 is a deficient number, since it is larger than the sum of its proper divisors (1).

372728731057 is an equidigital number, since it uses as much as digits as its factorization.

372728731057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3457440, while the sum is 52.

The spelling of 372728731057 in words is "three hundred seventy-two billion, seven hundred twenty-eight million, seven hundred thirty-one thousand, fifty-seven".