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57961888847 is a prime number
BaseRepresentation
bin110101111110110011…
…000011110001001111
312112121110112000211222
4311332303003301033
51422201220420342
642343300233555
74121230632452
oct657663036117
9175543460758
1057961888847
1122643a7aa85
12b29739b8bb
13560942ac65
142b3bd17499
151793862ed2
hexd7ecc3c4f

57961888847 has 2 divisors, whose sum is σ = 57961888848. Its totient is φ = 57961888846.

The previous prime is 57961888843. The next prime is 57961888861. The reversal of 57961888847 is 74888816975.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57961888847 - 22 = 57961888843 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57961888843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28980944423 + 28980944424.

It is an arithmetic number, because the mean of its divisors is an integer number (28980944424).

Almost surely, 257961888847 is an apocalyptic number.

57961888847 is a deficient number, since it is larger than the sum of its proper divisors (1).

57961888847 is an equidigital number, since it uses as much as digits as its factorization.

57961888847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216760320, while the sum is 71.

The spelling of 57961888847 in words is "fifty-seven billion, nine hundred sixty-one million, eight hundred eighty-eight thousand, eight hundred forty-seven".