247274472138377 has 2 divisors, whose sum is σ = 247274472138378. Its totient is φ = 247274472138376.

The previous prime is 247274472138329. The next prime is 247274472138409. The reversal of 247274472138377 is 773831274472742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233088281338441 + 14186190799936 = 15267229^2 + 3766456^2 .

It is a cyclic number.

It is not a de Polignac number, because 247274472138377 - 2⁸ = 247274472138121 is a prime.

It is a super-2 number, since 2×247274472138377² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247274472134377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123637236069188 + 123637236069189.

It is an arithmetic number, because the mean of its divisors is an integer number (123637236069189).

Almost surely, 2^{247274472138377} is an apocalyptic number.

It is an amenable number.

247274472138377 is a deficient number, since it is larger than the sum of its proper divisors (1).

247274472138377 is an equidigital number, since it uses as much as digits as its factorization.

247274472138377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 619573248, while the sum is 68.

The spelling of 247274472138377 in words is "two hundred forty-seven trillion, two hundred seventy-four billion, four hundred seventy-two million, one hundred thirty-eight thousand, three hundred seventy-seven".