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BaseRepresentation
bin10111000101110101110001…
…11001010011000101110101
320122210100102102220200111012
423202322320321103011311
523123422231040321321
6255555104023522005
713460414160246416
oct1342727071230565
9218710372820435
1050778205401461
11151a7a0918937a
1258411a62b9305
1322444972763a5
14c7796d1b980d
155d0cce89805b
hex2e2eb8e53175

50778205401461 has 2 divisors, whose sum is σ = 50778205401462. Its totient is φ = 50778205401460.

The previous prime is 50778205401409. The next prime is 50778205401509. The reversal of 50778205401461 is 16410450287705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48097761915025 + 2680443486436 = 6935255^2 + 1637206^2 .

It is a cyclic number.

It is not a de Polignac number, because 50778205401461 - 26 = 50778205401397 is a prime.

It is a super-2 number, since 2×507782054014612 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50778205401061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25389102700730 + 25389102700731.

It is an arithmetic number, because the mean of its divisors is an integer number (25389102700731).

Almost surely, 250778205401461 is an apocalyptic number.

It is an amenable number.

50778205401461 is a deficient number, since it is larger than the sum of its proper divisors (1).

50778205401461 is an equidigital number, since it uses as much as digits as its factorization.

50778205401461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 50778205401461 in words is "fifty trillion, seven hundred seventy-eight billion, two hundred five million, four hundred one thousand, four hundred sixty-one".