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26540151612979 is a prime number
BaseRepresentation
bin1100000100011010111000…
…10011110010011000110011
310110222012202210120001012111
412002031130103302120303
511434313212303103404
6132240213300510151
75406314461341544
oct602153423623063
9113865683501174
1026540151612979
11850268475a004
122b877ab0ab357
1311a6958088c74
1467a79ba264cb
153105848d6104
hex18235c4f2633

26540151612979 has 2 divisors, whose sum is σ = 26540151612980. Its totient is φ = 26540151612978.

The previous prime is 26540151612977. The next prime is 26540151612991. The reversal of 26540151612979 is 97921615104562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26540151612979 - 21 = 26540151612977 is a prime.

Together with 26540151612977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26540151612977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13270075806489 + 13270075806490.

It is an arithmetic number, because the mean of its divisors is an integer number (13270075806490).

Almost surely, 226540151612979 is an apocalyptic number.

26540151612979 is a deficient number, since it is larger than the sum of its proper divisors (1).

26540151612979 is an equidigital number, since it uses as much as digits as its factorization.

26540151612979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8164800, while the sum is 58.

The spelling of 26540151612979 in words is "twenty-six trillion, five hundred forty billion, one hundred fifty-one million, six hundred twelve thousand, nine hundred seventy-nine".