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12957531472911 = 367528112207031
BaseRepresentation
bin1011110010001110100100…
…0011111000010000001111
31200212201122122110211012210
42330203221003320100033
53144244011024113121
643320335140401503
72505102465153534
oct274435103702017
950781578424183
1012957531472911
114146292794823
12155330b0a6293
1372cb75375c4c
1432b20da7ad8b
151770c60de876
hexbc8e90f840f

12957531472911 has 16 divisors (see below), whose sum is σ = 17537891702528. Its totient is φ = 8507811628800.

The previous prime is 12957531472861. The next prime is 12957531472927. The reversal of 12957531472911 is 11927413575921.

It is not a de Polignac number, because 12957531472911 - 210 = 12957531471887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12957531472511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5042035 + ... + 7164996.

It is an arithmetic number, because the mean of its divisors is an integer number (1096118231408).

Almost surely, 212957531472911 is an apocalyptic number.

12957531472911 is a deficient number, since it is larger than the sum of its proper divisors (4580360229617).

12957531472911 is a wasteful number, since it uses less digits than its factorization.

12957531472911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12212382.

The product of its digits is 4762800, while the sum is 57.

The spelling of 12957531472911 in words is "twelve trillion, nine hundred fifty-seven billion, five hundred thirty-one million, four hundred seventy-two thousand, nine hundred eleven".

Divisors: 1 3 67 201 5281 15843 353827 1061481 12207031 36621093 817871077 2453613231 64465330711 193395992133 4319177157637 12957531472911