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127740041301791 is a prime number
BaseRepresentation
bin11101000010110111001011…
…110010010000111100011111
3121202021211101010000021222002
4131002313023302100330133
5113220343101033124131
61131402544223512515
735622625206551162
oct3502671362207437
9552254333007862
10127740041301791
113777a27a1588a6
12123b0a6145873b
135637aac9a59c9
15eb7c293516cb
hex742dcbc90f1f

127740041301791 has 2 divisors, whose sum is σ = 127740041301792. Its totient is φ = 127740041301790.

The previous prime is 127740041301773. The next prime is 127740041301799. The reversal of 127740041301791 is 197103140047721.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-127740041301791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127740041301799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63870020650895 + 63870020650896.

It is an arithmetic number, because the mean of its divisors is an integer number (63870020650896).

Almost surely, 2127740041301791 is an apocalyptic number.

127740041301791 is a deficient number, since it is larger than the sum of its proper divisors (1).

127740041301791 is an equidigital number, since it uses as much as digits as its factorization.

127740041301791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 47.

The spelling of 127740041301791 in words is "one hundred twenty-seven trillion, seven hundred forty billion, forty-one million, three hundred one thousand, seven hundred ninety-one".