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12880567025 = 521799972887
BaseRepresentation
bin10111111111011110…
…11101101011110001
31020020200001121012222
423333233131223301
5202334411121100
65530043130425
7634123004354
oct137757355361
936220047188
1012880567025
11550a820717
1225b5813a15
1312a3715bc1
148a295a29b
15505c0e485
hex2ffbddaf1

12880567025 has 24 divisors (see below), whose sum is σ = 16082809920. Its totient is φ = 10233063360.

The previous prime is 12880566997. The next prime is 12880567043. The reversal of 12880567025 is 52076508821.

It is not a de Polignac number, because 12880567025 - 26 = 12880566961 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4460132 + ... + 4463018.

It is an arithmetic number, because the mean of its divisors is an integer number (670117080).

Almost surely, 212880567025 is an apocalyptic number.

It is an amenable number.

12880567025 is a deficient number, since it is larger than the sum of its proper divisors (3202242895).

12880567025 is a wasteful number, since it uses less digits than its factorization.

12880567025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073 (or 4068 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 12880567025 in words is "twelve billion, eight hundred eighty million, five hundred sixty-seven thousand, twenty-five".

Divisors: 1 5 25 179 895 997 2887 4475 4985 14435 24925 72175 178463 516773 892315 2583865 2878339 4461575 12919325 14391695 71958475 515222681 2576113405 12880567025