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68768877711010 = 257589906165209
BaseRepresentation
bin11111010001011100000001…
…00001110000111010100010
3100000111020111022211120101011
433220232000201300322202
533003202130143223020
6402131553012131134
720325246616603411
oct1750560041607242
9300436438746334
1068768877711010
111aa03798737744
127867a52006aaa
132c4ab536a0ca9
1412da607c31478
157e3c828e635a
hex3e8b80870ea2

68768877711010 has 16 divisors (see below), whose sum is σ = 123800290990200. Its totient is φ = 27503926393216.

The previous prime is 68768877711007. The next prime is 68768877711047. The reversal of 68768877711010 is 1011777886786.

It can be written as a sum of positive squares in 4 ways, for example, as 24479626440721 + 44289251270289 = 4947689^2 + 6655017^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453006715 + ... + 453158494.

Almost surely, 268768877711010 is an apocalyptic number.

68768877711010 is a deficient number, since it is larger than the sum of its proper divisors (55031413279190).

68768877711010 is a wasteful number, since it uses less digits than its factorization.

68768877711010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906172805.

The product of its (nonzero) digits is 44255232, while the sum is 67.

The spelling of 68768877711010 in words is "sixty-eight trillion, seven hundred sixty-eight billion, eight hundred seventy-seven million, seven hundred eleven thousand, ten".

Divisors: 1 2 5 10 7589 15178 37945 75890 906165209 1812330418 4530826045 9061652090 6876887771101 13753775542202 34384438855505 68768877711010