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64802000057 is a prime number
BaseRepresentation
bin111100010110100000…
…000000110010111001
320012021011101200110012
4330112200000302321
52030203303000212
645434123431305
74452565624604
oct742640006271
9205234350405
1064802000057
1125534048853
1210686085535
136159581c42
1431ca53333b
151a440e7922
hexf16800cb9

64802000057 has 2 divisors, whose sum is σ = 64802000058. Its totient is φ = 64802000056.

The previous prime is 64802000041. The next prime is 64802000071. The reversal of 64802000057 is 75000020846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62662104976 + 2139895081 = 250324^2 + 46259^2 .

It is a cyclic number.

It is not a de Polignac number, because 64802000057 - 24 = 64802000041 is a prime.

It is a super-2 number, since 2×648020000572 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64801999987 and 64802000032.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32401000028 + 32401000029.

It is an arithmetic number, because the mean of its divisors is an integer number (32401000029).

Almost surely, 264802000057 is an apocalyptic number.

It is an amenable number.

64802000057 is a deficient number, since it is larger than the sum of its proper divisors (1).

64802000057 is an equidigital number, since it uses as much as digits as its factorization.

64802000057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 64802000057 in words is "sixty-four billion, eight hundred two million, fifty-seven", and thus it is an aban number.